Mozilla
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This vulnerability involves incorrect boundary conditions in Firefox's Graphics Canvas2D component that enables information disclosure. Firefox versions prior to 149, Firefox ESR prior to 115.34, and Firefox ESR prior to 140.9 are affected. An attacker can leverage improper boundary validation in Canvas2D operations to read sensitive information from memory that should not be accessible through normal web content restrictions.
Mozilla Firefox's WebRender graphics component contains a race condition and use-after-free vulnerability that enables remote code execution when a user visits a malicious webpage. The flaw affects Firefox versions prior to 149, Firefox ESR versions before 115.34 and 140.9, and requires user interaction to trigger. No patch is currently available for this high-severity issue.
A Server-Side Request Forgery (SSRF) vulnerability in AVideo's LiveLinks proxy endpoint allows unauthenticated attackers to access internal services and cloud metadata by exploiting missing validation on HTTP redirect targets. The vulnerability enables attackers to bypass initial URL validation through a malicious redirect, potentially exposing AWS/GCP/Azure instance metadata including IAM credentials. A detailed proof-of-concept is available and a patch has been released by the vendor.
AnythingLLM versions 1.11.1 and earlier contain an authentication bypass vulnerability on default installations where the application's HTTP endpoints and WebSocket connections lack proper authentication and accept requests from any origin. While rated CVSS 7.1, exploitation is limited to attackers on the same local network due to browser Private Network Access (PNA) protections, making this a medium-priority issue for most deployments.
Arbitrary code execution in Firefox versions prior to 148.0.2 results from multiple memory corruption flaws in the browser's memory safety implementation. An unauthenticated attacker can exploit these vulnerabilities through a malicious webpage requiring user interaction to achieve remote code execution with full system privileges. No patch is currently available for this vulnerability.
Firefox for Android versions prior to 148.0.2 contain a heap buffer overflow in the audio/video playback component that allows remote code execution, information disclosure, and denial of service through a malicious media file requiring user interaction. The vulnerability affects all Firefox for Android users and currently lacks a publicly available patch. An attacker can achieve complete system compromise by crafting a specially crafted video or audio file that triggers the buffer overflow when played.
Memory safety bugs in Firefox 147 and Thunderbird 147 with evidence of memory corruption. Mainline-only bugs not present in ESR branches.
Uninitialized memory read in Firefox Graphics Text component before 148. Text rendering may expose uninitialized memory contents.
Invalid pointer in Firefox DOM Core & HTML before 148. Incorrect pointer computation leads to memory access errors.
The Settings UI component in Firefox and Thunderbird versions prior to 148 fails to properly restrict access to sensitive configuration data, enabling unauthenticated attackers to remotely disclose confidential information without user interaction. This vulnerability bypasses existing security mitigations designed to protect user settings and preferences. No patch is currently available for affected users.
Improper boundary condition handling in the JavaScript/WebAssembly engine of Firefox and Thunderbird before version 148 enables remote denial of service attacks without requiring user interaction or privileges. An attacker can crash affected applications or cause service unavailability by sending specially crafted content. No patch is currently available.
Spoofing in Firefox for Android WebAuthn component before 148. Allows phishing attacks through WebAuthn UI manipulation.
Use-after-free in Firefox DOM Core & HTML before 148. DOM object lifecycle error.
A use-after-free vulnerability in Firefox and Thunderbird's DOM processing allows remote attackers to execute arbitrary code through a malicious webpage or email attachment, requiring only user interaction to trigger. This affects Firefox versions below 148 and Thunderbird versions below 148, with no patch currently available.
Use-after-free in Firefox JavaScript GC before 148. Second GC UAF, different from CVE-2026-2795.
JIT miscompilation in Firefox WebAssembly before 148. The JIT compiler generates incorrect Wasm code, enabling type confusion. PoC available.
Use-after-free in Firefox JavaScript GC component before 148. GC-specific UAF affecting only mainline Firefox and Thunderbird.
Uninitialized memory in Firefox and Firefox Focus for Android versions prior to 148 enables remote attackers to read sensitive data without authentication or user interaction. The vulnerability allows information disclosure through memory that was not properly cleared before use, potentially exposing confidential user information to network-based attackers.
Memory safety bugs in Firefox ESR 115.32, ESR 140.7, and Firefox 147. Broader set of memory corruption issues than CVE-2026-2792.
Memory safety bugs in Firefox ESR 140.7 and Firefox 147 with evidence of memory corruption and potential code execution exploitability.
Cache-based mitigation bypass in Firefox Networking before 148. Caching mechanism can be exploited to bypass security mitigations.
Same-origin policy bypass in Firefox Networking JAR component before 148. Allows cross-origin data access through JAR protocol handling.
Use-after-free in Firefox ImageLib graphics component before 148. Image processing triggers use of freed memory.
Boundary error in Firefox Audio/Video GMP (Gecko Media Plugins) component before 148. Media plugin processing triggers memory corruption.
Use-after-free in Firefox DOM Window and Location component before 148. Window/Location lifecycle management error.
Use-after-free in Firefox JavaScript Engine before 148. Fourth distinct JS engine UAF in this release.
Invalid pointer in Firefox JavaScript Engine before 148. Incorrect pointer computation leads to memory corruption.
DOM Security mitigation bypass in Firefox before 148. Security mechanisms protecting DOM operations can be circumvented.
Unauthenticated attackers can extract sensitive information from Firefox and Thunderbird users through a JavaScript engine JIT compilation flaw, affecting all versions prior to Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. The vulnerability requires no user interaction and can be exploited remotely over the network. No patch is currently available for this high-severity flaw.
Privilege escalation in Firefox Netmonitor component before 148. Second Netmonitor privilege escalation, separate from CVE-2026-2780.
Integer overflow in NSS (Network Security Services) cryptographic library enables remote unauthenticated attackers to achieve arbitrary code execution with critical impact on confidentiality, integrity, and availability across Mozilla Firefox (<148, ESR <140.8) and Thunderbird (<148, ESR <140.8). The vulnerability carries a maximum CVSS 9.8 score with no exploitation barriers, though EPSS probability remains low (0.04%, 14th percentile) and no active exploitation is confirmed. Vendor patches available through Mozilla security advisories MFSA2026-13/15/16/17 with corresponding Red Hat updates deployed across enterprise distributions.
Privilege escalation in Firefox Netmonitor component before 148. Developer tools component allows escalation from content to higher privileges.
Boundary error in Firefox Networking JAR component before 148. Processing JAR (Java Archive) content triggers memory corruption.
Sandbox escape via DOM Core & HTML component in Firefox before 148. CVSS 10.0 — fifth sandbox escape in this release.
Privilege escalation in Firefox Messaging System component before 148. The inter-process messaging system allows escalation from content to privileged process.
Sandbox escape via Telemetry component in Firefox external software before 148. CVSS 10.0 — fourth sandbox escape in this release, through the telemetry subsystem.
HTML parser mitigation bypass in Firefox DOM before 148. Bypasses content sanitization protections via alternate authentication path in the HTML parser.
Integer overflow in Firefox Audio/Video component before 148. Overflow in media processing leads to incorrect memory allocations.
Boundary error in Firefox Web Audio component before 148. Crafted audio processing triggers memory corruption.
Use-after-free in Firefox Audio/Video Playback component before 148. Media playback triggers memory corruption.
Undefined behavior in Firefox DOM Core & HTML component before 148. Can lead to memory corruption and potential code execution.
Use-after-free in Firefox DOM Bindings (WebIDL) component before 148. Memory corruption in the interface between JavaScript and native DOM objects.
A use-after-free vulnerability in the IndexedDB storage component of Firefox and Thunderbird allows remote attackers to achieve arbitrary code execution through user interaction. Affected versions include Firefox below 148, Firefox ESR below 115.33 and 140.8, and Thunderbird below 148 and 140.8. No patch is currently available for this high-severity flaw.
Sandbox escape via IndexedDB in Firefox before 148 and Thunderbird. CVSS 10.0 — the Storage: IndexedDB component allows escaping the content process sandbox.
Use-after-free in Firefox JavaScript WebAssembly component before 148. WebAssembly-specific memory management bug.
Use-after-free in Firefox JavaScript JIT compiler before 148. Second JIT-related UAF in this release, different from CVE-2026-2764.
Use-after-free in Firefox JavaScript Engine before 148 and Thunderbird ESR 140.8. Separate UAF from CVE-2026-2763 and CVE-2026-2758.
JIT miscompilation causing use-after-free in Firefox JavaScript JIT compiler before 148. JIT bugs are highly exploitable due to their deterministic nature.
Use-after-free in Firefox JavaScript Engine before 148. One of multiple JS engine UAFs fixed in this release.
Integer overflow in Firefox JavaScript Standard Library before 148 leads to memory corruption through crafted JavaScript operations.
Second sandbox escape in Firefox WebRender component. CVSS 10.0 — independent path from CVE-2026-2760 to escape the content process sandbox.
Sandbox escape via boundary violation in Firefox WebRender graphics component. CVSS 10.0 — allows escaping the content sandbox to execute code with elevated privileges.
Boundary violation in Firefox ImageLib graphics component before 148 enables memory corruption through crafted images.
Use-after-free in Firefox JavaScript garbage collector before 148 allows remote code execution through crafted JavaScript.
Boundary violation in Firefox WebRTC Audio/Video component before 148 allows remote code execution through crafted WebRTC media streams.
Address bar spoofing in Firefox before 148 allows malicious scripts to desynchronize the displayed URL from actual web content before receiving a response, enabling phishing attacks.
Heap buffer overflow in libvpx affects Firefox and Thunderbird across multiple versions, enabling remote code execution when a user interacts with malicious content. An unauthenticated attacker can exploit this vulnerability over the network without special privileges to achieve complete system compromise including data theft and integrity violations. No patch is currently available, making this a critical risk for affected users.
Firefox versions prior to 147.0.2 contain a use-after-free vulnerability in the Layout: Scrolling and Overflow component that can be triggered by user interaction, allowing remote attackers to achieve code execution with high integrity and confidentiality impact. The vulnerability requires network access and user interaction but does not require authentication, making it exploitable through malicious web content. No patch is currently available for this vulnerability.
Firefox 146 and Thunderbird 146 contain memory safety bugs with evidence of memory corruption that could potentially be exploited for code execution.
Arbitrary code execution in Firefox and Thunderbird versions prior to 147/140.7 results from memory corruption vulnerabilities that could allow remote attackers to execute malicious code with no user interaction required. Multiple memory safety flaws across Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146, and Thunderbird 146 create conditions for potential exploitation despite no patch currently being available. The high CVSS score of 8.1 reflects the critical nature of achieving full system compromise through network-based attack vectors.
Service Workers in Mozilla Firefox and Thunderbird versions below 147 are vulnerable to remote denial-of-service attacks that require no user interaction or authentication. An unauthenticated attacker can crash affected applications over the network, and public exploit code exists for this vulnerability. Currently no patch is available for remediation.
Firefox JavaScript engine has a use-after-free vulnerability. Affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147 and < 140.7.
A use-after-free vulnerability in the IPC component of Firefox (versions below 147 and ESR versions below 115.32/140.7) and Thunderbird (versions below 147 and 140.7) enables remote code execution when users interact with malicious content. The flaw requires user interaction and network access, allowing attackers to achieve full system compromise with high integrity and confidentiality impact. No patch is currently available for this vulnerability.
Firefox Messaging System component has a sandbox escape vulnerability. Maximum CVSS 10.0 with scope change. Affects Firefox < 147 and Thunderbird < 147.
Integer overflow in Firefox and Thunderbird's Graphics component enables sandbox escape, allowing remote attackers to execute arbitrary code with high privileges through a malicious webpage or content requiring user interaction. Affected versions include Firefox below 147, Firefox ESR below 115.32 and 140.7, and Thunderbird below 147 and 140.7. No patch is currently available.
Firefox sandbox escape via incorrect boundary conditions in the Graphics component. Affects Firefox < 147, Firefox ESR < 115.32 and < 140.7, Thunderbird < 147 and < 140.7.
Incorrect boundary condition validation in Firefox and Thunderbird's WebGL graphics component allows attackers to escape the sandbox and potentially execute arbitrary code through a crafted web page or malicious content. The vulnerability affects Firefox versions below 147, Firefox ESR below 140.7, Thunderbird below 147, and Thunderbird ESR below 140.7, and requires user interaction to exploit. No patch is currently available.
DOM security bypass in Firefox and Thunderbird allows remote attackers to circumvent protective mitigations through user interaction, affecting multiple versions across both products. An attacker can exploit this to achieve high-impact compromise of confidentiality and integrity without requiring authentication. Currently no patch is available for affected users.
Ray is an AI compute engine. Rated critical severity (CVSS 9.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape. Rated critical severity (CVSS 9.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Removing an XSLT parameter during processing could have lead to an exploitable use-after-free. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxed parent process opening web content chosen by a. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A type confusion vulnerability can occur when manipulating JavaScript objects due to issues in Array.pop. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An issue was discovered in the Cisco WebEx Extension before 1.0.7 on Google Chrome, the ActiveTouch General Plugin Container before 106 on Mozilla Firefox, the GpcContainer Class ActiveX control. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 80.4%.
The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to bypass the Same Origin Policy, and read arbitrary files or gain. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Actively exploited in the wild (cisa kev) and public exploit code available.
Mozilla Firefox before 37.0, Firefox ESR 31.x before 31.6, and Thunderbird before 31.6 do not properly restrict resource: URLs, which makes it easier for remote attackers to execute arbitrary. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 85.4%.
Mozilla Firefox before 37.0 relies on docshell type information instead of page principal information for Window.webidl access control, which might allow remote attackers to execute arbitrary. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 80.4%.
The XrayWrapper implementation in Mozilla Firefox before 35.0 and SeaMonkey before 2.32 does not properly interact with a DOM object that has a named getter, which might allow remote attackers to. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 83.6%.
Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allow remote attackers to bypass the popup blocker via unspecified vectors. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 70.5%.
The Web IDL implementation in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allows remote attackers to execute arbitrary JavaScript. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 71.1%.
The crypto.generateCRMFRequest function in Mozilla Firefox before 23.0, Firefox ESR 17.x before 17.0.8, Thunderbird before 17.0.8, Thunderbird ESR 17.x before 17.0.8, and SeaMonkey before 2.20 allows. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 76.5%.
Mozilla Firefox before 22.0, Firefox ESR 17.x before 17.0.7, Thunderbird before 17.0.7, and Thunderbird ESR 17.x before 17.0.7 do not properly handle onreadystatechange events in conjunction with. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Actively exploited in the wild (cisa kev) and public exploit code available.
Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, and Thunderbird ESR 17.x before 17.0.6 do not properly initialize data structures for the. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Actively exploited in the wild (cisa kev) and public exploit code available.
The Firefox sandbox in Adobe Flash Player before 10.3.183.67 and 11.x before 11.6.602.171 on Windows and Mac OS X, and before 10.3.183.67 and 11.x before 11.2.202.273 on Linux, does not properly. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Actively exploited in the wild (cisa kev) and EPSS exploitation probability 57.9%.
Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 and 17.x before 17.0.2, and SeaMonkey before 2.15. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Public exploit code available and EPSS exploitation probability 87.4%.
This vulnerability involves incorrect boundary conditions in Firefox's Graphics Canvas2D component that enables information disclosure. Firefox versions prior to 149, Firefox ESR prior to 115.34, and Firefox ESR prior to 140.9 are affected. An attacker can leverage improper boundary validation in Canvas2D operations to read sensitive information from memory that should not be accessible through normal web content restrictions.
Mozilla Firefox's WebRender graphics component contains a race condition and use-after-free vulnerability that enables remote code execution when a user visits a malicious webpage. The flaw affects Firefox versions prior to 149, Firefox ESR versions before 115.34 and 140.9, and requires user interaction to trigger. No patch is currently available for this high-severity issue.
A Server-Side Request Forgery (SSRF) vulnerability in AVideo's LiveLinks proxy endpoint allows unauthenticated attackers to access internal services and cloud metadata by exploiting missing validation on HTTP redirect targets. The vulnerability enables attackers to bypass initial URL validation through a malicious redirect, potentially exposing AWS/GCP/Azure instance metadata including IAM credentials. A detailed proof-of-concept is available and a patch has been released by the vendor.
AnythingLLM versions 1.11.1 and earlier contain an authentication bypass vulnerability on default installations where the application's HTTP endpoints and WebSocket connections lack proper authentication and accept requests from any origin. While rated CVSS 7.1, exploitation is limited to attackers on the same local network due to browser Private Network Access (PNA) protections, making this a medium-priority issue for most deployments.
Arbitrary code execution in Firefox versions prior to 148.0.2 results from multiple memory corruption flaws in the browser's memory safety implementation. An unauthenticated attacker can exploit these vulnerabilities through a malicious webpage requiring user interaction to achieve remote code execution with full system privileges. No patch is currently available for this vulnerability.
Firefox for Android versions prior to 148.0.2 contain a heap buffer overflow in the audio/video playback component that allows remote code execution, information disclosure, and denial of service through a malicious media file requiring user interaction. The vulnerability affects all Firefox for Android users and currently lacks a publicly available patch. An attacker can achieve complete system compromise by crafting a specially crafted video or audio file that triggers the buffer overflow when played.
Memory safety bugs in Firefox 147 and Thunderbird 147 with evidence of memory corruption. Mainline-only bugs not present in ESR branches.
Uninitialized memory read in Firefox Graphics Text component before 148. Text rendering may expose uninitialized memory contents.
Invalid pointer in Firefox DOM Core & HTML before 148. Incorrect pointer computation leads to memory access errors.
The Settings UI component in Firefox and Thunderbird versions prior to 148 fails to properly restrict access to sensitive configuration data, enabling unauthenticated attackers to remotely disclose confidential information without user interaction. This vulnerability bypasses existing security mitigations designed to protect user settings and preferences. No patch is currently available for affected users.
Improper boundary condition handling in the JavaScript/WebAssembly engine of Firefox and Thunderbird before version 148 enables remote denial of service attacks without requiring user interaction or privileges. An attacker can crash affected applications or cause service unavailability by sending specially crafted content. No patch is currently available.
Spoofing in Firefox for Android WebAuthn component before 148. Allows phishing attacks through WebAuthn UI manipulation.
Use-after-free in Firefox DOM Core & HTML before 148. DOM object lifecycle error.
A use-after-free vulnerability in Firefox and Thunderbird's DOM processing allows remote attackers to execute arbitrary code through a malicious webpage or email attachment, requiring only user interaction to trigger. This affects Firefox versions below 148 and Thunderbird versions below 148, with no patch currently available.
Use-after-free in Firefox JavaScript GC before 148. Second GC UAF, different from CVE-2026-2795.
JIT miscompilation in Firefox WebAssembly before 148. The JIT compiler generates incorrect Wasm code, enabling type confusion. PoC available.
Use-after-free in Firefox JavaScript GC component before 148. GC-specific UAF affecting only mainline Firefox and Thunderbird.
Uninitialized memory in Firefox and Firefox Focus for Android versions prior to 148 enables remote attackers to read sensitive data without authentication or user interaction. The vulnerability allows information disclosure through memory that was not properly cleared before use, potentially exposing confidential user information to network-based attackers.
Memory safety bugs in Firefox ESR 115.32, ESR 140.7, and Firefox 147. Broader set of memory corruption issues than CVE-2026-2792.
Memory safety bugs in Firefox ESR 140.7 and Firefox 147 with evidence of memory corruption and potential code execution exploitability.
Cache-based mitigation bypass in Firefox Networking before 148. Caching mechanism can be exploited to bypass security mitigations.
Same-origin policy bypass in Firefox Networking JAR component before 148. Allows cross-origin data access through JAR protocol handling.
Use-after-free in Firefox ImageLib graphics component before 148. Image processing triggers use of freed memory.
Boundary error in Firefox Audio/Video GMP (Gecko Media Plugins) component before 148. Media plugin processing triggers memory corruption.
Use-after-free in Firefox DOM Window and Location component before 148. Window/Location lifecycle management error.
Use-after-free in Firefox JavaScript Engine before 148. Fourth distinct JS engine UAF in this release.
Invalid pointer in Firefox JavaScript Engine before 148. Incorrect pointer computation leads to memory corruption.
DOM Security mitigation bypass in Firefox before 148. Security mechanisms protecting DOM operations can be circumvented.
Unauthenticated attackers can extract sensitive information from Firefox and Thunderbird users through a JavaScript engine JIT compilation flaw, affecting all versions prior to Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. The vulnerability requires no user interaction and can be exploited remotely over the network. No patch is currently available for this high-severity flaw.
Privilege escalation in Firefox Netmonitor component before 148. Second Netmonitor privilege escalation, separate from CVE-2026-2780.
Integer overflow in NSS (Network Security Services) cryptographic library enables remote unauthenticated attackers to achieve arbitrary code execution with critical impact on confidentiality, integrity, and availability across Mozilla Firefox (<148, ESR <140.8) and Thunderbird (<148, ESR <140.8). The vulnerability carries a maximum CVSS 9.8 score with no exploitation barriers, though EPSS probability remains low (0.04%, 14th percentile) and no active exploitation is confirmed. Vendor patches available through Mozilla security advisories MFSA2026-13/15/16/17 with corresponding Red Hat updates deployed across enterprise distributions.
Privilege escalation in Firefox Netmonitor component before 148. Developer tools component allows escalation from content to higher privileges.
Boundary error in Firefox Networking JAR component before 148. Processing JAR (Java Archive) content triggers memory corruption.
Sandbox escape via DOM Core & HTML component in Firefox before 148. CVSS 10.0 — fifth sandbox escape in this release.
Privilege escalation in Firefox Messaging System component before 148. The inter-process messaging system allows escalation from content to privileged process.
Sandbox escape via Telemetry component in Firefox external software before 148. CVSS 10.0 — fourth sandbox escape in this release, through the telemetry subsystem.
HTML parser mitigation bypass in Firefox DOM before 148. Bypasses content sanitization protections via alternate authentication path in the HTML parser.
Integer overflow in Firefox Audio/Video component before 148. Overflow in media processing leads to incorrect memory allocations.
Boundary error in Firefox Web Audio component before 148. Crafted audio processing triggers memory corruption.
Use-after-free in Firefox Audio/Video Playback component before 148. Media playback triggers memory corruption.
Undefined behavior in Firefox DOM Core & HTML component before 148. Can lead to memory corruption and potential code execution.
Use-after-free in Firefox DOM Bindings (WebIDL) component before 148. Memory corruption in the interface between JavaScript and native DOM objects.
A use-after-free vulnerability in the IndexedDB storage component of Firefox and Thunderbird allows remote attackers to achieve arbitrary code execution through user interaction. Affected versions include Firefox below 148, Firefox ESR below 115.33 and 140.8, and Thunderbird below 148 and 140.8. No patch is currently available for this high-severity flaw.
Sandbox escape via IndexedDB in Firefox before 148 and Thunderbird. CVSS 10.0 — the Storage: IndexedDB component allows escaping the content process sandbox.
Use-after-free in Firefox JavaScript WebAssembly component before 148. WebAssembly-specific memory management bug.
Use-after-free in Firefox JavaScript JIT compiler before 148. Second JIT-related UAF in this release, different from CVE-2026-2764.
Use-after-free in Firefox JavaScript Engine before 148 and Thunderbird ESR 140.8. Separate UAF from CVE-2026-2763 and CVE-2026-2758.
JIT miscompilation causing use-after-free in Firefox JavaScript JIT compiler before 148. JIT bugs are highly exploitable due to their deterministic nature.
Use-after-free in Firefox JavaScript Engine before 148. One of multiple JS engine UAFs fixed in this release.
Integer overflow in Firefox JavaScript Standard Library before 148 leads to memory corruption through crafted JavaScript operations.
Second sandbox escape in Firefox WebRender component. CVSS 10.0 — independent path from CVE-2026-2760 to escape the content process sandbox.
Sandbox escape via boundary violation in Firefox WebRender graphics component. CVSS 10.0 — allows escaping the content sandbox to execute code with elevated privileges.
Boundary violation in Firefox ImageLib graphics component before 148 enables memory corruption through crafted images.
Use-after-free in Firefox JavaScript garbage collector before 148 allows remote code execution through crafted JavaScript.
Boundary violation in Firefox WebRTC Audio/Video component before 148 allows remote code execution through crafted WebRTC media streams.
Address bar spoofing in Firefox before 148 allows malicious scripts to desynchronize the displayed URL from actual web content before receiving a response, enabling phishing attacks.
Heap buffer overflow in libvpx affects Firefox and Thunderbird across multiple versions, enabling remote code execution when a user interacts with malicious content. An unauthenticated attacker can exploit this vulnerability over the network without special privileges to achieve complete system compromise including data theft and integrity violations. No patch is currently available, making this a critical risk for affected users.
Firefox versions prior to 147.0.2 contain a use-after-free vulnerability in the Layout: Scrolling and Overflow component that can be triggered by user interaction, allowing remote attackers to achieve code execution with high integrity and confidentiality impact. The vulnerability requires network access and user interaction but does not require authentication, making it exploitable through malicious web content. No patch is currently available for this vulnerability.
Firefox 146 and Thunderbird 146 contain memory safety bugs with evidence of memory corruption that could potentially be exploited for code execution.
Arbitrary code execution in Firefox and Thunderbird versions prior to 147/140.7 results from memory corruption vulnerabilities that could allow remote attackers to execute malicious code with no user interaction required. Multiple memory safety flaws across Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146, and Thunderbird 146 create conditions for potential exploitation despite no patch currently being available. The high CVSS score of 8.1 reflects the critical nature of achieving full system compromise through network-based attack vectors.
Service Workers in Mozilla Firefox and Thunderbird versions below 147 are vulnerable to remote denial-of-service attacks that require no user interaction or authentication. An unauthenticated attacker can crash affected applications over the network, and public exploit code exists for this vulnerability. Currently no patch is available for remediation.
Firefox JavaScript engine has a use-after-free vulnerability. Affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147 and < 140.7.
A use-after-free vulnerability in the IPC component of Firefox (versions below 147 and ESR versions below 115.32/140.7) and Thunderbird (versions below 147 and 140.7) enables remote code execution when users interact with malicious content. The flaw requires user interaction and network access, allowing attackers to achieve full system compromise with high integrity and confidentiality impact. No patch is currently available for this vulnerability.
Firefox Messaging System component has a sandbox escape vulnerability. Maximum CVSS 10.0 with scope change. Affects Firefox < 147 and Thunderbird < 147.
Integer overflow in Firefox and Thunderbird's Graphics component enables sandbox escape, allowing remote attackers to execute arbitrary code with high privileges through a malicious webpage or content requiring user interaction. Affected versions include Firefox below 147, Firefox ESR below 115.32 and 140.7, and Thunderbird below 147 and 140.7. No patch is currently available.
Firefox sandbox escape via incorrect boundary conditions in the Graphics component. Affects Firefox < 147, Firefox ESR < 115.32 and < 140.7, Thunderbird < 147 and < 140.7.
Incorrect boundary condition validation in Firefox and Thunderbird's WebGL graphics component allows attackers to escape the sandbox and potentially execute arbitrary code through a crafted web page or malicious content. The vulnerability affects Firefox versions below 147, Firefox ESR below 140.7, Thunderbird below 147, and Thunderbird ESR below 140.7, and requires user interaction to exploit. No patch is currently available.
DOM security bypass in Firefox and Thunderbird allows remote attackers to circumvent protective mitigations through user interaction, affecting multiple versions across both products. An attacker can exploit this to achieve high-impact compromise of confidentiality and integrity without requiring authentication. Currently no patch is available for affected users.
Ray is an AI compute engine. Rated critical severity (CVSS 9.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape. Rated critical severity (CVSS 9.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Removing an XSLT parameter during processing could have lead to an exploitable use-after-free. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxed parent process opening web content chosen by a. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A type confusion vulnerability can occur when manipulating JavaScript objects due to issues in Array.pop. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An issue was discovered in the Cisco WebEx Extension before 1.0.7 on Google Chrome, the ActiveTouch General Plugin Container before 106 on Mozilla Firefox, the GpcContainer Class ActiveX control. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 80.4%.
The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to bypass the Same Origin Policy, and read arbitrary files or gain. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Actively exploited in the wild (cisa kev) and public exploit code available.
Mozilla Firefox before 37.0, Firefox ESR 31.x before 31.6, and Thunderbird before 31.6 do not properly restrict resource: URLs, which makes it easier for remote attackers to execute arbitrary. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 85.4%.
Mozilla Firefox before 37.0 relies on docshell type information instead of page principal information for Window.webidl access control, which might allow remote attackers to execute arbitrary. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 80.4%.
The XrayWrapper implementation in Mozilla Firefox before 35.0 and SeaMonkey before 2.32 does not properly interact with a DOM object that has a named getter, which might allow remote attackers to. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 83.6%.
Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allow remote attackers to bypass the popup blocker via unspecified vectors. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 70.5%.
The Web IDL implementation in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allows remote attackers to execute arbitrary JavaScript. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 71.1%.
The crypto.generateCRMFRequest function in Mozilla Firefox before 23.0, Firefox ESR 17.x before 17.0.8, Thunderbird before 17.0.8, Thunderbird ESR 17.x before 17.0.8, and SeaMonkey before 2.20 allows. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 76.5%.
Mozilla Firefox before 22.0, Firefox ESR 17.x before 17.0.7, Thunderbird before 17.0.7, and Thunderbird ESR 17.x before 17.0.7 do not properly handle onreadystatechange events in conjunction with. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Actively exploited in the wild (cisa kev) and public exploit code available.
Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, and Thunderbird ESR 17.x before 17.0.6 do not properly initialize data structures for the. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Actively exploited in the wild (cisa kev) and public exploit code available.
The Firefox sandbox in Adobe Flash Player before 10.3.183.67 and 11.x before 11.6.602.171 on Windows and Mac OS X, and before 10.3.183.67 and 11.x before 11.2.202.273 on Linux, does not properly. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Actively exploited in the wild (cisa kev) and EPSS exploitation probability 57.9%.
Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 and 17.x before 17.0.2, and SeaMonkey before 2.15. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Public exploit code available and EPSS exploitation probability 87.4%.