Mozilla
Monthly
Spoofing issue in the Site Permissions component. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Integer overflow in the SVG component. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Incorrect boundary conditions in the JavaScript: GC component. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Mitigation bypass in the Web Compatibility: Tooling component. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Spoofing issue in the WebAuthn component in Firefox for Android. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Same-origin policy bypass in the Layout component. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component. Rated high severity (CVSS 7.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Sandbox escape due to use-after-free in the Graphics: Canvas2D component. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Opening links via the contextual menu in Focus iOS for certain URL schemes would fail to load but would not refresh the toolbar correctly, allowing attackers to spoof websites if users were coerced. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Memory safety bugs present in Firefox 141 and Thunderbird 141. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Spoofing issue in the Address Bar component of Firefox Focus for Android. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Memory safety bugs present in Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Spoofing issue in the Address Bar component. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Denial-of-service due to out-of-memory in the Graphics: WebRender component. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Uninitialized memory in the JavaScript Engine component. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Same-origin policy bypass in the Graphics: Canvas2D component. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An attacker was able to perform memory corruption in the GMP process which processes encrypted media. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A crafted URL using a blob: URI could have hidden the true origin of the page, resulting in a potential spoofing attack. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Firefox for Android allowed a sandboxed iframe without the `allow-downloads` attribute to start downloads. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In the address bar, Firefox for Android truncated the display of URLs from the end instead of prioritizing the origin. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Dragging JavaScript links to the URL bar in Focus for iOS could be utilized to run malicious scripts, potentially resulting in XSS attacks This vulnerability affects Focus for iOS < 142. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Focus for iOS would not respect a Content-Disposition header of type Attachment and would incorrectly display the content inline, potentially allowing for XSS attacks This vulnerability affects Focus. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Malicious pages could use Firefox for iOS to pass FIDO: links to the OS and trigger the hybrid passkey transport. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Firefox for iOS would not respect a Content-Disposition header of type Attachment and would incorrectly display the content inline rather than downloading, potentially allowing for XSS attacks This. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Malicious scripts could bypass the popup blocker to spam new tabs, potentially resulting in denial of service attacks This vulnerability affects Firefox for iOS < 142. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Malicious scripts utilizing repetitive JavaScript alerts could prevent client user interaction in some scenarios and allow for denial of service attacks This vulnerability affects Firefox for iOS <. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The QR scanner could allow arbitrary websites to be opened if a user was tricked into scanning a malicious link that leveraged Firefox's open-text URL scheme This vulnerability affects Firefox for. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The URL scheme used by Firefox to facilitate searching of text queries could incorrectly allow attackers to open arbitrary website URLs or internal pages if a user was tricked into clicking a link. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Sandboxed iframes on webpages could potentially allow downloads to the device, bypassing the expected sandbox restrictions declared on the parent page This vulnerability affects Firefox for iOS < 141. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Memory corruption in Firefox 140 and Thunderbird 140 enables remote code execution without authentication. Mozilla confirmed multiple memory safety bugs with evidence of corruption, collectively presumed exploitable for arbitrary code execution. Fixed in Firefox 141 and Thunderbird 141. CVSS 9.8 critical severity with network-accessible attack vector requiring no user interaction. EPSS data not provided; no public exploit identified at time of analysis.
Firefox and Thunderbird URL truncation flaw enables spoofing attacks by displaying misleading origins in the address bar. Affects all Firefox versions prior to 141 and corresponding Thunderbird releases. Attackers can craft URLs that hide the true destination, tricking users into visiting malicious sites. Publicly available exploit code exists. CVSS 9.8 critical rating reflects network-based attack requiring no authentication, though real-world exploitation requires social engineering (user interaction despite UI:N vector).
Memory corruption in Mozilla Firefox 140 and Thunderbird 140 (including ESR versions) allows remote code execution when users interact with malicious web content. Affected versions include Firefox ESR 140.0, Firefox 140, Thunderbird ESR 140.0, and Thunderbird 140. With CVSS 8.8 and requiring only user interaction (no authentication), this represents a significant threat to enterprise and consumer users. No public exploit identified at time of analysis, though Mozilla confirmed memory corruption evidence suggesting exploitability with sufficient attacker effort. Vendor-released patches available in Firefox 141, Firefox ESR 140.1, Thunderbird 141, and Thunderbird 140.1.
Search term leakage in Mozilla Firefox and Thunderbird URL bars exposes sensitive user queries to unauthorized parties when URLs are shared or logged. Firefox versions prior to 141 (regular) and 140.1 (ESR), and Thunderbird versions prior to 141 (regular) and 140.1 (ESR) fail to properly clear search parameters from the URL bar after navigation, enabling information disclosure through shoulder surfing, screenshot sharing, browser history exports, or URL-based tracking. No public exploit identified at time of analysis, though the attack requires only user interaction (EPSS data not provided). CVSS 8.1 reflects high confidentiality and integrity impact despite requiring user interaction.
Frame navigation validation bypass in Mozilla Firefox and Thunderbird allows unauthenticated remote attackers to violate security boundaries due to improper path checking (CWE-345). Affects Firefox <141, Firefox ESR <140.1, Thunderbird <141, and Thunderbird ESR <140.1. The CVSS 9.8 critical score reflects network-based exploitation with no user interaction required, enabling potential unauthorized access, data manipulation, and service disruption. No public exploit identified at time of analysis, though the network attack vector (AV:N) and low complexity (AC:L) suggest straightforward exploitation once technical details emerge.
Cookie shadowing in Mozilla Firefox (versions prior to 141 and ESR prior to 140.1) and Thunderbird (versions prior to 141 and ESR prior to 140.1) allows remote unauthenticated attackers to bypass Secure cookie protections and access or modify session data. A nameless cookie containing an equals sign set over insecure HTTP can override cookies with the Secure attribute, enabling session hijacking or authentication bypass. No public exploit identified at time of analysis, though the attack complexity is low (CVSS AC:L) with network-based attack vector requiring no user interaction.
DNS rebinding attacks can bypass Cross-Origin Resource Sharing (CORS) protections in Mozilla Firefox and Thunderbird due to improper cache invalidation of CORS preflight responses when target IP addresses change. Remote attackers can exploit this via malicious websites to access confidential cross-origin data without user authentication (CVSS: PR:N, UI:R). No public exploit identified at time of analysis, though CERT VU#652514 provides technical disclosure. EPSS data not provided, but the combination of network-accessible attack vector, low complexity, and no required privileges warrants attention for organizations using affected Mozilla products.
Remote code execution in Mozilla Firefox (ESR 128.12, 140.0, Firefox 140) and Thunderbird (ESR 128.12, 140.0, Thunderbird 140) allows unauthenticated remote attackers to execute arbitrary code via memory corruption vulnerabilities classified as buffer overflow (CWE-119). User interaction is required. Mozilla has released patches for all affected products (Firefox 141, ESR 128.13, ESR 140.1, Thunderbird 141, 128.13, 140.1). No public exploit identified at time of analysis, though CVSS score of 8.8 reflects high severity with complete compromise potential.
Remote code execution in Mozilla Firefox (ESR 115.x through 115.25, 128.x through 128.12, 140.0, regular 140) and Thunderbird (ESR 128.12, 140.0, regular 140) via memory safety bugs (CWE-119 buffer overflow). Attackers can execute arbitrary code by delivering crafted web content that triggers memory corruption when a user interacts with malicious pages or emails. CVSS 8.8 (High) reflects network-based attack requiring user interaction but no authentication. Vendor-released patches available: Firefox 141, Firefox ESR 115.26/128.13/140.1, Thunderbird 141/128.13/140.1. EPSS data not provided; no public exploit identified at time of analysis, though Mozilla notes evidence of memory corruption suggesting exploitability with effort.
Null pointer dereference in Firefox and Thunderbird JavaScript engines allows remote attackers to cause denial of service via malformed closed generator objects. The vulnerability affects Firefox versions below 141, Firefox ESR versions below 115.26/128.13/140.1, Thunderbird versions below 141/128.13/140.1, and is triggered when a user visits a malicious webpage or opens a crafted email containing JavaScript that improperly resumes a closed generator. While the CVSS score is 6.5 (medium-high), the impact is limited to availability-no information disclosure or code execution is possible.
Content Security Policy bypass in Mozilla Firefox and Thunderbird allows remote attackers to circumvent CSP protections via maliciously crafted XSLT documents. The flaw affects Firefox versions prior to 141 and Firefox ESR prior to 128.13/140.1, as well as Thunderbird versions prior to 141 and Thunderbird ESR prior to 128.13/140.1. Attack requires user interaction (visiting a malicious site or opening a malicious email) but no authentication. With CVSS 8.1 (High severity) and documented in six separate Mozilla security advisories, this CSP bypass enables high-impact confidentiality and integrity violations, though no public exploit or active exploitation has been identified at time of analysis.
HTTP Basic Authentication credentials leak in Mozilla Firefox and Thunderbird via Content Security Policy (CSP) violation reports affects all versions prior to Firefox 141, Firefox ESR 128.13/140.1, and Thunderbird 141/128.13/140.1. When CSP violations occur on pages using HTTP Basic Auth, the browser incorrectly includes username:password in the violation report URL sent to the CSP report endpoint, exposing credentials to potentially untrusted third parties. With CVSS 9.8 and network-based unauthenticated attack vector (AV:N/AC:L/PR:N), this represents a critical credential disclosure vulnerability, though no public exploit or active exploitation (non-KEV) is confirmed at time of analysis.
Firefox and Thunderbird's 'Copy as cURL' feature improperly escapes shell metacharacters, allowing remote attackers to trick users into executing arbitrary commands when pasting copied network requests into a terminal. Affects Firefox <141, Firefox ESR <128.13/140.1, and Thunderbird <141, <128.13/140.1. Vendor-released patches available across all affected branches. CVSS 8.1 with network attack vector requiring user interaction; no public exploit identified at time of analysis. EPSS data not provided but social engineering dependency limits automated exploitation risk.
Mozilla Firefox and Thunderbird execute JavaScript via crafted object/embed tags, enabling remote attackers to achieve high-impact XSS without authentication. Affects Firefox <141, Firefox ESR <128.13/<140.1, and Thunderbird <141/128.13/140.1. Users must visit a malicious page (UI:R), but attack complexity is low (AC:L) and no privileges required (PR:N). Vendor-released patches available across all affected product lines. No public exploit identified at time of analysis, though the attack surface is broad given browser/email client ubiquity.
WebAssembly JIT compiler on ARM64 architectures incorrectly calculates branch addresses when processing WASM br_table instructions with numerous entries, enabling remote code execution in Firefox <141, Firefox ESR <115.26/128.13/140.1, and Thunderbird <141/128.13/140.1. The vulnerability requires no authentication or user interaction (CVSS AV:N/AC:L/PR:N/UI:N), allowing network-based attackers to potentially execute arbitrary code through malicious WASM content. Vendor-released patches are available across all affected product lines. No public exploit identified at time of analysis, though the CVSS 9.8 critical rating reflects the theoretical severity of unauthenticated remote code execution.
Information disclosure in Mozilla Firefox and Thunderbird on 64-bit platforms allows remote attackers to leak sensitive memory contents via specially crafted web content. The IonMonkey JIT compiler writes only 32 bits of the 64-bit return value space on the stack, while the Baseline JIT reads the entire 64 bits, exposing uninitialized stack memory. Exploitation requires user interaction (UI:R) and no authentication. Fixes are available: Firefox 141+, Firefox ESR 115.26+, Firefox ESR 128.13+, Firefox ESR 140.1+, Thunderbird 141+, Thunderbird 128.13+, and Thunderbird 140.1+.
An XSS vulnerability exists in langgenius/dify versions prior to 1.1.3, specifically affecting Firefox browsers. This vulnerability allows an attacker to obtain the administrator's token by sending a payload in the published chat. When the administrator views the conversation content through the monitoring/log function using Firefox, the XSS vulnerability is triggered, potentially exposing sensitive token information to the attacker.
Improper Input Validation vulnerability in Mozilla neqo leads to an unexploitable crash..This issue affects neqo: from 0.4.24 through 0.13.2.
CVE-2025-6436 is a collection of memory safety vulnerabilities in Firefox and Thunderbird versions 139 that demonstrate evidence of memory corruption with potential for arbitrary code execution. The vulnerability affects Firefox < 140 and Thunderbird < 140, and requires network access but moderate attack complexity. While no active exploitation in the wild has been confirmed, the high CVSS score of 8.1 and memory corruption evidence indicate this is a critical patch requiring immediate deployment.
CVE-2025-6435 is a file handling vulnerability in Firefox and Thunderbird's Developer Tools where saved network responses may lack the `.download` file extension, potentially allowing attackers to trick users into executing malicious executables. This affects Firefox versions below 140 and Thunderbird versions below 140. The vulnerability requires user interaction (saving and executing a file) but carries high severity (CVSS 8.1) due to potential for arbitrary code execution.
Clickjacking on the HTTPS-Only exception page allows tricking users into loading HTTP pages in Firefox and Thunderbird before version 140. With CVSS 4.3, low EPSS (0.04%), and no known active exploitation or public exploit, this is a low-severity UI spoofing risk.
CVE-2025-6433 is a critical WebAuthn specification violation in Firefox and Thunderbird that allows attackers to present WebAuthn authentication challenges over non-secure TLS connections with user-granted exceptions. This bypasses the WebAuthn requirement for secure transport without errors, enabling credential theft and account compromise. Firefox < 140 and Thunderbird < 140 are affected; the network-based attack requires no privileges or user interaction beyond the initial certificate exception grant, resulting in a CVSS 9.8 critical rating.
CVE-2025-6432 is a DNS proxy bypass vulnerability in Firefox and Thunderbird when Mozilla's Multi-Account Containers extension is enabled. Under specific conditions-invalid domain names or unresponsive SOCKS proxies-DNS requests circumvent the configured SOCKS proxy, potentially exposing user browsing activity to network monitoring. This affects Firefox < 140 and Thunderbird < 140, has a high CVSS score of 8.6 reflecting significant confidentiality impact, and requires network-level access but no user interaction to exploit.
Improper authorization bypass in Firefox for Android allows remote attackers to skip the security prompt when opening links in external applications. Affected versions prior to 140 enable crafted links to launch external apps without user consent, potentially exposing users to vulnerabilities or privacy leaks within those apps. No active exploitation or public exploit code is known, and the EPSS likelihood is very low.
Cross-site scripting in Mozilla Firefox and Thunderbird occurs when a file download specified via Content-Disposition header is ignored for <embed> or <object> tags, allowing an attacker to inject scripts. Affected are Firefox < 140, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12. No public exploit or active exploitation identified; EPSS score is low (0.08%).
URL parsing bypass in Firefox and Thunderbird allows attackers to rewrite URLs to youtube.com via an embed tag, potentially bypassing website security checks that restrict embed domains. Affects Firefox < 140, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12. No public exploit identified at time of analysis.
Open redirect vulnerability in Firefox for Android allows phishing attacks via crafted link querystring parameters. Affected versions are Firefox < 140 on Android only. Public exploit code exists, but no active exploitation in CISA KEV; EPSS score is low (0.06%).
A security vulnerability in Devtools. This vulnerability affects Firefox (CVSS 9.1). Critical severity with potential for significant impact on affected systems.
CVE-2025-6426 is a missing executable file warning vulnerability in Firefox and Thunderbird on macOS that fails to alert users before opening files with the 'terminal' extension, potentially allowing attackers to execute arbitrary code. This affects Firefox < 140, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12 on macOS only. An attacker can leverage this to trick users into executing malicious terminal scripts by bypassing the security warning mechanism that normally prevents automatic execution of executable files.
Information disclosure in Mozilla Firefox and Thunderbird allows an attacker who enumerated resources from the WebCompat extension to obtain a persistent UUID that identifies the browser, persisting across containers and normal/private browsing modes but not profiles. This affects Firefox < 140, Firefox ESR < 115.25 and < 128.12, Thunderbird < 140 and < 128.12. No public exploit identified at time of analysis; EPSS score is low (0.09%).
A denial of service vulnerability (CVSS 9.8). Critical severity with potential for significant impact on affected systems.
Mishandling of mailbox:/// links in Thunderbird allows automatic, unsolicited downloads of .pdf files to the user's desktop or home directory without prompting, even if auto-saving is disabled. This can be abused to fill the disk with garbage data or leak Windows credentials via SMB links when the email is viewed in HTML mode. No public exploit identified at time of analysis, but EPSS score is 0.15% (low).
Local privilege escalation vulnerability in Mozilla VPN for macOS that allows an authenticated local user to escalate privileges from normal user to root. This affects Mozilla VPN versions below 2.28.0 on macOS exclusively. An attacker with local access can exploit this without user interaction to gain complete system control, making it a critical risk for multi-user systems or compromised local accounts.
An integer overflow vulnerability exists in the OrderedHashTable component of Firefox's JavaScript engine, allowing remote attackers to achieve arbitrary code execution without requiring user interaction or elevated privileges. This critical flaw affects Firefox versions prior to 139.0.4 and carries a maximum CVSS score of 9.8, indicating severe real-world risk with network-based attack vectors requiring no user interaction.
Critical memory corruption vulnerability in Firefox canvas operations that allows unauthenticated remote attackers to achieve arbitrary code execution with no user interaction required. Firefox versions prior to 139.0.4 are affected. The vulnerability has a near-perfect CVSS score of 9.8 due to network accessibility, low attack complexity, and complete compromise of confidentiality, integrity, and availability.
Memory safety bugs present in Firefox 138 and Thunderbird 138. Rated high severity (CVSS 7.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Previewing a response in Devtools ignored CSP headers, which could have allowed content injection attacks. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In certain cases, SNI could have been sent unencrypted even when encrypted DNS was enabled. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Memory safety bugs present in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
A clickjacking vulnerability could have been used to trick a user into leaking saved payment card details to a malicious page. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Script elements loading cross-origin resources generated load and error events which leaked information enabling XS-Leaks attacks. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Due to insufficient escaping of the ampersand character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potentially leading to local code execution on the. Rated medium severity (CVSS 4.8), this vulnerability is low attack complexity. No vendor patch available.
Due to insufficient escaping of the newline character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's. Rated medium severity (CVSS 4.8), this vulnerability is low attack complexity. No vendor patch available.
Error handling for script execution was incorrectly isolated from web content, which could have allowed cross-origin leak attacks. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A double-free could have occurred in `vpx_codec_enc_init_multi` after a failed allocation when initializing the encoder for WebRTC. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Opening maliciously-crafted URLs in Firefox from other apps such as Safari could have allowed attackers to spoof website addresses if the URLs utilized non-HTTP schemes used internally by the Firefox. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Open redirection vulnerability in IceWarp Mail Server affecting version 11.4.0. Rated medium severity (CVSS 5.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
It was possible to craft an email that showed a tracking link as an attachment. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Thunderbird's handling of the X-Mozilla-External-Attachment-URL header can be exploited to execute JavaScript in the file:/// context. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Thunderbird parses addresses in a way that can allow sender spoofing in case the server allows an invalid From address to be used. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Websites directing users to long URLs that caused eliding to occur in the location view could leverage the truncating behavior to potentially trick users into thinking they were on a different. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Memory safety bug present in Firefox ESR 128.9, and Thunderbird 128.9. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Memory safety bugs present in Firefox 137 and Thunderbird 137. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Memory safety bugs present in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
A vulnerability existed in Thunderbird for Android where potentially sensitive library locations were logged via Logcat. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Due to insufficient escaping of special characters in the "copy as cURL" feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's. Rated medium severity (CVSS 5.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A security vulnerability in Thunderbird allowed malicious sites to use redirects to send credentialed requests to arbitrary endpoints on any site that had invoked the Storage Access API. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Spoofing issue in the Site Permissions component. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Integer overflow in the SVG component. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Incorrect boundary conditions in the JavaScript: GC component. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Mitigation bypass in the Web Compatibility: Tooling component. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Spoofing issue in the WebAuthn component in Firefox for Android. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Same-origin policy bypass in the Layout component. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component. Rated high severity (CVSS 7.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Sandbox escape due to use-after-free in the Graphics: Canvas2D component. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Opening links via the contextual menu in Focus iOS for certain URL schemes would fail to load but would not refresh the toolbar correctly, allowing attackers to spoof websites if users were coerced. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Memory safety bugs present in Firefox 141 and Thunderbird 141. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Spoofing issue in the Address Bar component of Firefox Focus for Android. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Memory safety bugs present in Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Spoofing issue in the Address Bar component. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Denial-of-service due to out-of-memory in the Graphics: WebRender component. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Uninitialized memory in the JavaScript Engine component. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Same-origin policy bypass in the Graphics: Canvas2D component. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An attacker was able to perform memory corruption in the GMP process which processes encrypted media. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A crafted URL using a blob: URI could have hidden the true origin of the page, resulting in a potential spoofing attack. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Firefox for Android allowed a sandboxed iframe without the `allow-downloads` attribute to start downloads. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In the address bar, Firefox for Android truncated the display of URLs from the end instead of prioritizing the origin. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Dragging JavaScript links to the URL bar in Focus for iOS could be utilized to run malicious scripts, potentially resulting in XSS attacks This vulnerability affects Focus for iOS < 142. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Focus for iOS would not respect a Content-Disposition header of type Attachment and would incorrectly display the content inline, potentially allowing for XSS attacks This vulnerability affects Focus. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Malicious pages could use Firefox for iOS to pass FIDO: links to the OS and trigger the hybrid passkey transport. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Firefox for iOS would not respect a Content-Disposition header of type Attachment and would incorrectly display the content inline rather than downloading, potentially allowing for XSS attacks This. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Malicious scripts could bypass the popup blocker to spam new tabs, potentially resulting in denial of service attacks This vulnerability affects Firefox for iOS < 142. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Malicious scripts utilizing repetitive JavaScript alerts could prevent client user interaction in some scenarios and allow for denial of service attacks This vulnerability affects Firefox for iOS <. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The QR scanner could allow arbitrary websites to be opened if a user was tricked into scanning a malicious link that leveraged Firefox's open-text URL scheme This vulnerability affects Firefox for. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The URL scheme used by Firefox to facilitate searching of text queries could incorrectly allow attackers to open arbitrary website URLs or internal pages if a user was tricked into clicking a link. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Sandboxed iframes on webpages could potentially allow downloads to the device, bypassing the expected sandbox restrictions declared on the parent page This vulnerability affects Firefox for iOS < 141. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Memory corruption in Firefox 140 and Thunderbird 140 enables remote code execution without authentication. Mozilla confirmed multiple memory safety bugs with evidence of corruption, collectively presumed exploitable for arbitrary code execution. Fixed in Firefox 141 and Thunderbird 141. CVSS 9.8 critical severity with network-accessible attack vector requiring no user interaction. EPSS data not provided; no public exploit identified at time of analysis.
Firefox and Thunderbird URL truncation flaw enables spoofing attacks by displaying misleading origins in the address bar. Affects all Firefox versions prior to 141 and corresponding Thunderbird releases. Attackers can craft URLs that hide the true destination, tricking users into visiting malicious sites. Publicly available exploit code exists. CVSS 9.8 critical rating reflects network-based attack requiring no authentication, though real-world exploitation requires social engineering (user interaction despite UI:N vector).
Memory corruption in Mozilla Firefox 140 and Thunderbird 140 (including ESR versions) allows remote code execution when users interact with malicious web content. Affected versions include Firefox ESR 140.0, Firefox 140, Thunderbird ESR 140.0, and Thunderbird 140. With CVSS 8.8 and requiring only user interaction (no authentication), this represents a significant threat to enterprise and consumer users. No public exploit identified at time of analysis, though Mozilla confirmed memory corruption evidence suggesting exploitability with sufficient attacker effort. Vendor-released patches available in Firefox 141, Firefox ESR 140.1, Thunderbird 141, and Thunderbird 140.1.
Search term leakage in Mozilla Firefox and Thunderbird URL bars exposes sensitive user queries to unauthorized parties when URLs are shared or logged. Firefox versions prior to 141 (regular) and 140.1 (ESR), and Thunderbird versions prior to 141 (regular) and 140.1 (ESR) fail to properly clear search parameters from the URL bar after navigation, enabling information disclosure through shoulder surfing, screenshot sharing, browser history exports, or URL-based tracking. No public exploit identified at time of analysis, though the attack requires only user interaction (EPSS data not provided). CVSS 8.1 reflects high confidentiality and integrity impact despite requiring user interaction.
Frame navigation validation bypass in Mozilla Firefox and Thunderbird allows unauthenticated remote attackers to violate security boundaries due to improper path checking (CWE-345). Affects Firefox <141, Firefox ESR <140.1, Thunderbird <141, and Thunderbird ESR <140.1. The CVSS 9.8 critical score reflects network-based exploitation with no user interaction required, enabling potential unauthorized access, data manipulation, and service disruption. No public exploit identified at time of analysis, though the network attack vector (AV:N) and low complexity (AC:L) suggest straightforward exploitation once technical details emerge.
Cookie shadowing in Mozilla Firefox (versions prior to 141 and ESR prior to 140.1) and Thunderbird (versions prior to 141 and ESR prior to 140.1) allows remote unauthenticated attackers to bypass Secure cookie protections and access or modify session data. A nameless cookie containing an equals sign set over insecure HTTP can override cookies with the Secure attribute, enabling session hijacking or authentication bypass. No public exploit identified at time of analysis, though the attack complexity is low (CVSS AC:L) with network-based attack vector requiring no user interaction.
DNS rebinding attacks can bypass Cross-Origin Resource Sharing (CORS) protections in Mozilla Firefox and Thunderbird due to improper cache invalidation of CORS preflight responses when target IP addresses change. Remote attackers can exploit this via malicious websites to access confidential cross-origin data without user authentication (CVSS: PR:N, UI:R). No public exploit identified at time of analysis, though CERT VU#652514 provides technical disclosure. EPSS data not provided, but the combination of network-accessible attack vector, low complexity, and no required privileges warrants attention for organizations using affected Mozilla products.
Remote code execution in Mozilla Firefox (ESR 128.12, 140.0, Firefox 140) and Thunderbird (ESR 128.12, 140.0, Thunderbird 140) allows unauthenticated remote attackers to execute arbitrary code via memory corruption vulnerabilities classified as buffer overflow (CWE-119). User interaction is required. Mozilla has released patches for all affected products (Firefox 141, ESR 128.13, ESR 140.1, Thunderbird 141, 128.13, 140.1). No public exploit identified at time of analysis, though CVSS score of 8.8 reflects high severity with complete compromise potential.
Remote code execution in Mozilla Firefox (ESR 115.x through 115.25, 128.x through 128.12, 140.0, regular 140) and Thunderbird (ESR 128.12, 140.0, regular 140) via memory safety bugs (CWE-119 buffer overflow). Attackers can execute arbitrary code by delivering crafted web content that triggers memory corruption when a user interacts with malicious pages or emails. CVSS 8.8 (High) reflects network-based attack requiring user interaction but no authentication. Vendor-released patches available: Firefox 141, Firefox ESR 115.26/128.13/140.1, Thunderbird 141/128.13/140.1. EPSS data not provided; no public exploit identified at time of analysis, though Mozilla notes evidence of memory corruption suggesting exploitability with effort.
Null pointer dereference in Firefox and Thunderbird JavaScript engines allows remote attackers to cause denial of service via malformed closed generator objects. The vulnerability affects Firefox versions below 141, Firefox ESR versions below 115.26/128.13/140.1, Thunderbird versions below 141/128.13/140.1, and is triggered when a user visits a malicious webpage or opens a crafted email containing JavaScript that improperly resumes a closed generator. While the CVSS score is 6.5 (medium-high), the impact is limited to availability-no information disclosure or code execution is possible.
Content Security Policy bypass in Mozilla Firefox and Thunderbird allows remote attackers to circumvent CSP protections via maliciously crafted XSLT documents. The flaw affects Firefox versions prior to 141 and Firefox ESR prior to 128.13/140.1, as well as Thunderbird versions prior to 141 and Thunderbird ESR prior to 128.13/140.1. Attack requires user interaction (visiting a malicious site or opening a malicious email) but no authentication. With CVSS 8.1 (High severity) and documented in six separate Mozilla security advisories, this CSP bypass enables high-impact confidentiality and integrity violations, though no public exploit or active exploitation has been identified at time of analysis.
HTTP Basic Authentication credentials leak in Mozilla Firefox and Thunderbird via Content Security Policy (CSP) violation reports affects all versions prior to Firefox 141, Firefox ESR 128.13/140.1, and Thunderbird 141/128.13/140.1. When CSP violations occur on pages using HTTP Basic Auth, the browser incorrectly includes username:password in the violation report URL sent to the CSP report endpoint, exposing credentials to potentially untrusted third parties. With CVSS 9.8 and network-based unauthenticated attack vector (AV:N/AC:L/PR:N), this represents a critical credential disclosure vulnerability, though no public exploit or active exploitation (non-KEV) is confirmed at time of analysis.
Firefox and Thunderbird's 'Copy as cURL' feature improperly escapes shell metacharacters, allowing remote attackers to trick users into executing arbitrary commands when pasting copied network requests into a terminal. Affects Firefox <141, Firefox ESR <128.13/140.1, and Thunderbird <141, <128.13/140.1. Vendor-released patches available across all affected branches. CVSS 8.1 with network attack vector requiring user interaction; no public exploit identified at time of analysis. EPSS data not provided but social engineering dependency limits automated exploitation risk.
Mozilla Firefox and Thunderbird execute JavaScript via crafted object/embed tags, enabling remote attackers to achieve high-impact XSS without authentication. Affects Firefox <141, Firefox ESR <128.13/<140.1, and Thunderbird <141/128.13/140.1. Users must visit a malicious page (UI:R), but attack complexity is low (AC:L) and no privileges required (PR:N). Vendor-released patches available across all affected product lines. No public exploit identified at time of analysis, though the attack surface is broad given browser/email client ubiquity.
WebAssembly JIT compiler on ARM64 architectures incorrectly calculates branch addresses when processing WASM br_table instructions with numerous entries, enabling remote code execution in Firefox <141, Firefox ESR <115.26/128.13/140.1, and Thunderbird <141/128.13/140.1. The vulnerability requires no authentication or user interaction (CVSS AV:N/AC:L/PR:N/UI:N), allowing network-based attackers to potentially execute arbitrary code through malicious WASM content. Vendor-released patches are available across all affected product lines. No public exploit identified at time of analysis, though the CVSS 9.8 critical rating reflects the theoretical severity of unauthenticated remote code execution.
Information disclosure in Mozilla Firefox and Thunderbird on 64-bit platforms allows remote attackers to leak sensitive memory contents via specially crafted web content. The IonMonkey JIT compiler writes only 32 bits of the 64-bit return value space on the stack, while the Baseline JIT reads the entire 64 bits, exposing uninitialized stack memory. Exploitation requires user interaction (UI:R) and no authentication. Fixes are available: Firefox 141+, Firefox ESR 115.26+, Firefox ESR 128.13+, Firefox ESR 140.1+, Thunderbird 141+, Thunderbird 128.13+, and Thunderbird 140.1+.
An XSS vulnerability exists in langgenius/dify versions prior to 1.1.3, specifically affecting Firefox browsers. This vulnerability allows an attacker to obtain the administrator's token by sending a payload in the published chat. When the administrator views the conversation content through the monitoring/log function using Firefox, the XSS vulnerability is triggered, potentially exposing sensitive token information to the attacker.
Improper Input Validation vulnerability in Mozilla neqo leads to an unexploitable crash..This issue affects neqo: from 0.4.24 through 0.13.2.
CVE-2025-6436 is a collection of memory safety vulnerabilities in Firefox and Thunderbird versions 139 that demonstrate evidence of memory corruption with potential for arbitrary code execution. The vulnerability affects Firefox < 140 and Thunderbird < 140, and requires network access but moderate attack complexity. While no active exploitation in the wild has been confirmed, the high CVSS score of 8.1 and memory corruption evidence indicate this is a critical patch requiring immediate deployment.
CVE-2025-6435 is a file handling vulnerability in Firefox and Thunderbird's Developer Tools where saved network responses may lack the `.download` file extension, potentially allowing attackers to trick users into executing malicious executables. This affects Firefox versions below 140 and Thunderbird versions below 140. The vulnerability requires user interaction (saving and executing a file) but carries high severity (CVSS 8.1) due to potential for arbitrary code execution.
Clickjacking on the HTTPS-Only exception page allows tricking users into loading HTTP pages in Firefox and Thunderbird before version 140. With CVSS 4.3, low EPSS (0.04%), and no known active exploitation or public exploit, this is a low-severity UI spoofing risk.
CVE-2025-6433 is a critical WebAuthn specification violation in Firefox and Thunderbird that allows attackers to present WebAuthn authentication challenges over non-secure TLS connections with user-granted exceptions. This bypasses the WebAuthn requirement for secure transport without errors, enabling credential theft and account compromise. Firefox < 140 and Thunderbird < 140 are affected; the network-based attack requires no privileges or user interaction beyond the initial certificate exception grant, resulting in a CVSS 9.8 critical rating.
CVE-2025-6432 is a DNS proxy bypass vulnerability in Firefox and Thunderbird when Mozilla's Multi-Account Containers extension is enabled. Under specific conditions-invalid domain names or unresponsive SOCKS proxies-DNS requests circumvent the configured SOCKS proxy, potentially exposing user browsing activity to network monitoring. This affects Firefox < 140 and Thunderbird < 140, has a high CVSS score of 8.6 reflecting significant confidentiality impact, and requires network-level access but no user interaction to exploit.
Improper authorization bypass in Firefox for Android allows remote attackers to skip the security prompt when opening links in external applications. Affected versions prior to 140 enable crafted links to launch external apps without user consent, potentially exposing users to vulnerabilities or privacy leaks within those apps. No active exploitation or public exploit code is known, and the EPSS likelihood is very low.
Cross-site scripting in Mozilla Firefox and Thunderbird occurs when a file download specified via Content-Disposition header is ignored for <embed> or <object> tags, allowing an attacker to inject scripts. Affected are Firefox < 140, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12. No public exploit or active exploitation identified; EPSS score is low (0.08%).
URL parsing bypass in Firefox and Thunderbird allows attackers to rewrite URLs to youtube.com via an embed tag, potentially bypassing website security checks that restrict embed domains. Affects Firefox < 140, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12. No public exploit identified at time of analysis.
Open redirect vulnerability in Firefox for Android allows phishing attacks via crafted link querystring parameters. Affected versions are Firefox < 140 on Android only. Public exploit code exists, but no active exploitation in CISA KEV; EPSS score is low (0.06%).
A security vulnerability in Devtools. This vulnerability affects Firefox (CVSS 9.1). Critical severity with potential for significant impact on affected systems.
CVE-2025-6426 is a missing executable file warning vulnerability in Firefox and Thunderbird on macOS that fails to alert users before opening files with the 'terminal' extension, potentially allowing attackers to execute arbitrary code. This affects Firefox < 140, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12 on macOS only. An attacker can leverage this to trick users into executing malicious terminal scripts by bypassing the security warning mechanism that normally prevents automatic execution of executable files.
Information disclosure in Mozilla Firefox and Thunderbird allows an attacker who enumerated resources from the WebCompat extension to obtain a persistent UUID that identifies the browser, persisting across containers and normal/private browsing modes but not profiles. This affects Firefox < 140, Firefox ESR < 115.25 and < 128.12, Thunderbird < 140 and < 128.12. No public exploit identified at time of analysis; EPSS score is low (0.09%).
A denial of service vulnerability (CVSS 9.8). Critical severity with potential for significant impact on affected systems.
Mishandling of mailbox:/// links in Thunderbird allows automatic, unsolicited downloads of .pdf files to the user's desktop or home directory without prompting, even if auto-saving is disabled. This can be abused to fill the disk with garbage data or leak Windows credentials via SMB links when the email is viewed in HTML mode. No public exploit identified at time of analysis, but EPSS score is 0.15% (low).
Local privilege escalation vulnerability in Mozilla VPN for macOS that allows an authenticated local user to escalate privileges from normal user to root. This affects Mozilla VPN versions below 2.28.0 on macOS exclusively. An attacker with local access can exploit this without user interaction to gain complete system control, making it a critical risk for multi-user systems or compromised local accounts.
An integer overflow vulnerability exists in the OrderedHashTable component of Firefox's JavaScript engine, allowing remote attackers to achieve arbitrary code execution without requiring user interaction or elevated privileges. This critical flaw affects Firefox versions prior to 139.0.4 and carries a maximum CVSS score of 9.8, indicating severe real-world risk with network-based attack vectors requiring no user interaction.
Critical memory corruption vulnerability in Firefox canvas operations that allows unauthenticated remote attackers to achieve arbitrary code execution with no user interaction required. Firefox versions prior to 139.0.4 are affected. The vulnerability has a near-perfect CVSS score of 9.8 due to network accessibility, low attack complexity, and complete compromise of confidentiality, integrity, and availability.
Memory safety bugs present in Firefox 138 and Thunderbird 138. Rated high severity (CVSS 7.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Previewing a response in Devtools ignored CSP headers, which could have allowed content injection attacks. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In certain cases, SNI could have been sent unencrypted even when encrypted DNS was enabled. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Memory safety bugs present in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
A clickjacking vulnerability could have been used to trick a user into leaking saved payment card details to a malicious page. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Script elements loading cross-origin resources generated load and error events which leaked information enabling XS-Leaks attacks. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Due to insufficient escaping of the ampersand character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potentially leading to local code execution on the. Rated medium severity (CVSS 4.8), this vulnerability is low attack complexity. No vendor patch available.
Due to insufficient escaping of the newline character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's. Rated medium severity (CVSS 4.8), this vulnerability is low attack complexity. No vendor patch available.
Error handling for script execution was incorrectly isolated from web content, which could have allowed cross-origin leak attacks. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A double-free could have occurred in `vpx_codec_enc_init_multi` after a failed allocation when initializing the encoder for WebRTC. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Opening maliciously-crafted URLs in Firefox from other apps such as Safari could have allowed attackers to spoof website addresses if the URLs utilized non-HTTP schemes used internally by the Firefox. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Open redirection vulnerability in IceWarp Mail Server affecting version 11.4.0. Rated medium severity (CVSS 5.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
It was possible to craft an email that showed a tracking link as an attachment. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Thunderbird's handling of the X-Mozilla-External-Attachment-URL header can be exploited to execute JavaScript in the file:/// context. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Thunderbird parses addresses in a way that can allow sender spoofing in case the server allows an invalid From address to be used. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Websites directing users to long URLs that caused eliding to occur in the location view could leverage the truncating behavior to potentially trick users into thinking they were on a different. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Memory safety bug present in Firefox ESR 128.9, and Thunderbird 128.9. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Memory safety bugs present in Firefox 137 and Thunderbird 137. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Memory safety bugs present in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
A vulnerability existed in Thunderbird for Android where potentially sensitive library locations were logged via Logcat. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Due to insufficient escaping of special characters in the "copy as cURL" feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's. Rated medium severity (CVSS 5.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A security vulnerability in Thunderbird allowed malicious sites to use redirects to send credentialed requests to arbitrary endpoints on any site that had invoked the Storage Access API. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.