Denial of Service
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
How It Works
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions. Attackers exploit asymmetry: minimal attacker effort produces disproportionate resource consumption on the target. Application-level attacks use specially crafted inputs that trigger expensive operations—a regex engine processing malicious patterns can backtrack exponentially, or XML parsers recursively expand entities until memory exhausts. Network-level attacks flood targets with connection requests or amplify traffic through reflection, but application vulnerabilities often provide the most efficient attack surface.
The attack typically begins with reconnaissance to identify resource-intensive operations or unprotected endpoints. For algorithmic complexity attacks, adversaries craft inputs hitting worst-case performance—hash collision inputs filling hash tables with collisions, deeply nested JSON triggering recursive parsing, or pathological regex patterns like (a+)+b against strings of repeated 'a' characters. Resource exhaustion attacks open thousands of connections, upload massive files to unbounded storage, or trigger memory leaks through repeated operations. Crash-based attacks target error handling gaps: null pointer dereferences, unhandled exceptions in parsers, or assertion failures that terminate processes.
Impact
- Service unavailability preventing legitimate users from accessing applications during attack duration
- Revenue loss from downtime in e-commerce, SaaS platforms, or transaction processing systems
- Cascading failures as resource exhaustion spreads to dependent services or database connections pool out
- SLA violations triggering financial penalties and damaging customer trust
- Security team distraction providing cover for data exfiltration or intrusion attempts running concurrently
Real-World Examples
CVE-2018-1000544 in Ruby's WEBrick server allowed ReDoS through malicious HTTP headers containing specially crafted patterns that caused the regex engine to backtrack exponentially, freezing request processing threads. A single attacker could saturate all available workers.
Cloudflare experienced a global outage in 2019 when a single WAF rule containing an unoptimized regex hit pathological cases on legitimate traffic spikes. The .*(?:.*=.*)* pattern exhibited catastrophic backtracking, consuming CPU cycles across their edge network until the rule was disabled.
CVE-2013-1664 demonstrated XML bomb vulnerabilities in Python's XML libraries. Attackers uploaded XML documents with nested entity definitions-each entity expanding to ten copies of the previous level. A 1KB upload could expand to gigabytes in memory during parsing, crashing applications instantly.
Mitigation
- Strict input validation enforcing size limits, complexity bounds, and nesting depth restrictions before processing
- Request rate limiting per IP address, API key, or user session with exponential backoff
- Timeout enforcement terminating operations exceeding reasonable execution windows (typically 1-5 seconds)
- Resource quotas limiting memory allocation, CPU time, and connection counts per request or tenant
- Regex complexity analysis using linear-time algorithms or sanitizing patterns to eliminate backtracking
- Circuit breakers automatically rejecting requests when error rates or latency thresholds indicate degradation
- Load balancing and autoscaling distributing traffic across instances with automatic capacity expansion
Recent CVEs (39715)
OS command injection in NVIDIA NemoClaw's command-line interface on Linux enables a local low-privileged attacker to execute arbitrary operating system commands, leading to full compromise of confidentiality, integrity, and availability. All versions of NemoClaw appear affected per the CPE wildcard (*), and the vulnerability is rooted in improper neutralization of user-supplied input passed to shell commands (CWE-78). No public exploit code and no CISA KEV listing have been identified at time of analysis, limiting current real-world risk primarily to environments with untrusted local users.
Sandbox-escaping remote code execution is possible in Google Chrome for iOS before 152.0.7977.65, where a use-after-free in the Sync component can be triggered by a victim visiting a crafted HTML page, potentially letting a remote attacker run arbitrary code outside the renderer sandbox. Google has shipped a fixed stable build, and there is no public exploit identified at time of analysis; the flaw is not listed in CISA KEV and SSVC records exploitation status as none. Notably, Chromium's own severity rating for this bug is Low, which stands in sharp contrast to the 9.6 CVSS score in the input.
Remote code execution within the Chrome sandbox is achievable in Google Chrome prior to 152.0.7977.65 through a use-after-free vulnerability in V8, Chrome's JavaScript engine, triggered by a crafted HTML page. Any unauthenticated remote attacker who can induce a user to visit a malicious URL can exploit this flaw; however, execution is confined to the Chrome sandbox, meaning a chained sandbox escape would be required for full host-system compromise. No public exploit code or confirmed active exploitation is documented at time of analysis, and SSVC assessment lists exploitation as none, tempering urgency despite the high CVSS base score.
Use-after-free in the Animation component of Google Chrome prior to 152.0.7977.65 enables arbitrary code execution within the browser's renderer sandbox when a user visits a crafted HTML page. The flaw scores 8.8 CVSS HIGH, though Google's own internal Chromium severity rating is Low - a notable discrepancy that reflects the sandboxed containment of the impact. No public exploit code has been identified, SSVC indicates no active exploitation, and a vendor patch is confirmed available in Chrome 152.0.7977.65.
Remote code execution in Google Chrome desktop before 152.0.7977.65 arises from a use-after-free in the ServiceWorker subsystem that a crafted HTML page can trigger to run attacker code outside the renderer sandbox. Any user browsing to a malicious page with a vulnerable build is exposed, and successful exploitation yields full compromise of the host user context. No public exploit identified at time of analysis and the issue is not in CISA KEV; notably, Chromium's own severity rating is Low even though the NVD CVSS base score is 9.6, a discrepancy defenders should weigh.
Use-after-free in Google Chrome's PDF rendering subsystem (all versions prior to 152.0.7977.65) allows a remote attacker to execute arbitrary code confined within the Chrome sandbox by delivering a crafted PDF file. The vulnerability is triggered through normal user interaction - opening a malicious PDF - requiring no privileges or authentication. While CVSS scores this 8.8 (High), Chrome's own severity rating is 'Low', reflecting the critical nuance that code execution is sandboxed and does not directly achieve host-level compromise. No public exploit exists and SSVC confirms no known exploitation at time of analysis.
Use-after-free in Google Chrome's DevTools component (all versions prior to 152.0.7977.65) enables remote attackers to execute arbitrary code inside the Chrome sandbox by distributing a crafted extension through social engineering. The CVSS 8.8 score reflects high confidentiality, integrity, and availability impact within the process scope, though exploitation is constrained by the mandatory user interaction required to install the malicious extension. No public exploit code exists and SSVC rates active exploitation as none at time of analysis, placing real-world urgency below what the raw score implies.
Use-after-free in V8, Google Chrome's JavaScript engine, prior to version 152.0.7977.65 enables remote attackers to execute arbitrary code within the Chrome sandbox by luring a user to a crafted HTML page. The CVSS 8.8 vector (AV:N/AC:L/PR:N/UI:R) confirms low-complexity, unauthenticated network delivery requiring only a single user visit, with high confidentiality, integrity, and availability impact scoped to the renderer process. No public exploit code has been identified at time of analysis, and SSVC rates exploitation as none with a non-automatable attack path, though technical impact is assessed as total within the sandbox.
Use-after-free in Chrome's Chromoting (remote desktop) component allows a remote, unauthenticated attacker to potentially execute arbitrary code outside the browser sandbox via crafted network traffic, affecting all Chrome versions prior to 152.0.7977.65. The sandbox-escape dimension elevates this beyond a typical renderer vulnerability, as successful exploitation could yield code execution in a broader process context. No public exploit identified at time of analysis and SSVC indicates no observed exploitation, but the technical impact is rated total.
Sandbox-escaping remote code execution affects Google Chrome on macOS before 152.0.7977.65 through a use-after-free in the browser's Bluetooth component (CVE-2026-79091). A remote attacker who lures a victim into opening a crafted HTML page can trigger the freed-memory reuse to run arbitrary code outside the renderer sandbox, giving control of the host process. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, though the sandbox-escape scope change drives a 9.6 CVSS base score despite Chromium's own Medium severity rating.
Sandbox-escaping remote code execution affects Google Chrome desktop before 152.0.7977.65, where a use-after-free in the ServiceWorker component lets a remote attacker run arbitrary code outside the renderer sandbox when a victim opens a crafted HTML page. The CVSS 3.1 score of 9.6 reflects the scope change (sandbox escape) and full CIA impact, though Google rated the Chromium severity only Medium and CISA's SSVC framework marks exploitation as none. No public exploit or CISA KEV listing exists at time of analysis, so risk is currently theoretical but high-impact.
Sandbox-escaping remote code execution affects Google Chrome on macOS prior to 152.0.7977.65, where a use-after-free in the Network component lets a remote attacker who convinces a victim to install a crafted extension run arbitrary code outside the renderer sandbox. Google rates the Chromium severity Medium, but the CVSS 9.6 reflects the scope-changing sandbox escape. No public exploit is identified at time of analysis and it is not on CISA KEV; EPSS is low at 0.24%.
Use-after-free in Chrome's UI layer allows a local attacker who has already achieved code execution inside the renderer process to escape the Chrome sandbox and execute arbitrary code on the underlying host system. All Google Chrome desktop releases prior to 152.0.7977.65 are affected per CPE cpe:2.3:a:google:chrome. No public exploit or CISA KEV listing exists at time of analysis, and EPSS sits at 0.12% (2nd percentile), consistent with a sophisticated chained exploit rather than mass exploitation; however, the Scope:Changed CVSS vector confirms this is a full sandbox escape with critical C/I/A impact once the preconditions are met.
Use-after-free in Google Chrome's DevTools component (all versions prior to 152.0.7977.65) allows a remote attacker to execute arbitrary code within the browser's renderer sandbox. Exploitation requires the victim to be socially engineered into installing and activating a crafted Chrome extension, making this a user-interaction-dependent attack rather than a passive drive-by. No active exploitation has been confirmed via CISA KEV, and SSVC classifies the exploitation status as none; however, SSVC also rates technical impact as total, meaning successful exploitation fully compromises confidentiality, integrity, and availability within the sandbox boundary.
Use-after-free in Chrome's Views UI component enables sandbox escape to arbitrary code execution outside the browser sandbox, affecting all Google Chrome versions prior to 152.0.7977.65. Exploitation requires an attacker who has already achieved renderer process compromise - making this a chained, second-stage attack rather than a direct initial access vector. No public exploit code has been identified and SSVC assessment confirms no active exploitation at time of analysis, though the technical impact is rated total due to the scope change across the sandbox boundary.
Sandbox-escaping remote code execution in Google Chrome on macOS (versions prior to 152.0.7977.65) stems from a use-after-free in the Views UI component, letting a remote attacker who lures a victim to a crafted HTML page run arbitrary code outside the browser sandbox. Google has shipped a fixed Stable channel build, and there is no public exploit identified at time of analysis. Despite a 9.6 CVSS, real-world signals are muted: EPSS is 0.33% (25th percentile), CISA SSVC lists exploitation as none, and Chromium rated the bug Medium severity.
Sandbox-escaping remote code execution affects Google Chrome for macOS before 152.0.7977.65 through a use-after-free in the Views UI component, letting a remote attacker who lures a victim to a crafted HTML page run arbitrary code outside the renderer sandbox. Google has shipped a fixed stable-channel build; there is no public exploit identified at time of analysis and CISA has not listed it in KEV. Despite an NVD CVSS of 9.6 driven by the scope change, Chromium's own team rated the security severity Medium, and EPSS exploitation probability is low at 0.41%.
Remote code execution in Google Chrome desktop before 152.0.7977.65 lets a remote attacker escape the browser sandbox by luring a victim to a crafted HTML page, exploiting a use-after-free in the Views UI framework to run arbitrary code with the browser process's privileges. The CVSS 9.6 score reflects a scope-changing sandbox escape (S:C), though Google rated the Chromium security severity only Medium and requires user interaction (visiting a malicious page). There is no public exploit identified at time of analysis, EPSS is low (0.46%), and CISA SSVC records exploitation status as none.
Use-after-free in Google Chrome's Compositing engine (all versions prior to 152.0.7977.65) enables remote code execution within the Chrome renderer sandbox when a user visits a crafted HTML page. The CVSS 8.8 score reflects full confidentiality, integrity, and availability impact, but execution is sandbox-confined and Chromium's own severity rating is Medium, suggesting real-world exploitation complexity is non-trivial. No public exploit has been identified and CISA SSVC records exploitation status as none; a vendor patch is available in Chrome 152.0.7977.65.
Sandbox-escaping remote code execution in Google Chrome for Android (Search component) affects all builds prior to 152.0.7977.65, where a use-after-free (CWE-416) lets a remote attacker who lures a victim into opening a crafted HTML page potentially execute arbitrary code outside the renderer sandbox. Google rated the Chromium severity Medium, yet the CVSS 3.1 base score is 9.6 due to the scope change and full CIA impact. There is no public exploit identified at time of analysis and it is not in CISA KEV; EPSS is low at 0.33% (25th percentile).
Sandbox-escaping remote code execution in Google Chrome for Android before 152.0.7977.65 stems from a use-after-free in the Sessions component (CVE-2026-79129, CWE-416). A remote attacker who lures a victim into a specific UI interaction (social engineering) can corrupt freed memory to run arbitrary code outside the renderer sandbox. Google has shipped a fixed build; no public exploit identified at time of analysis, EPSS is low (0.23%, 14th percentile), and CISA SSVC lists exploitation status as none.
Use-after-free in the Audio component of Google Chrome on Android (versions prior to 152.0.7977.65) enables sandbox escape and arbitrary code execution outside the Chrome renderer sandbox. Exploitation requires an attacker to have already compromised the renderer process and then deliver a crafted HTML page to trigger the memory corruption. No public exploit code or CISA KEV listing exists at time of analysis; SSVC confirms no active exploitation observed and the attack is not automatable.
Sandbox-escaping remote code execution in Google Chrome (desktop) before 152.0.7977.65 stems from a use-after-free in the Views UI framework, letting a remote attacker who lures a victim to a crafted HTML page potentially run arbitrary code outside the renderer sandbox. The flaw carries a CVSS 9.6 with scope change, though Google rated the Chromium security severity only Medium; there is no public exploit identified at time of analysis and SSVC lists exploitation as none. A vendor patch is available in the 152.0.7977.65 Stable channel release.
Sandbox-escaping remote code execution in Google Chrome's FedCM (Federated Credential Management) component affects all desktop builds prior to 152.0.7977.65. A remote attacker who lures a victim to a crafted HTML page can trigger a use-after-free (CWE-416) and execute arbitrary code outside the renderer sandbox, giving full control of the browser process. Google rates the Chromium severity High; there is no public exploit identified at time of analysis and it is not listed in CISA KEV, though the CVSS base score is Critical (9.6) because of the scope change.
Use-after-free in Google Chrome's V8 JavaScript engine allows remote attackers to execute arbitrary code within the browser renderer sandbox on all Chrome versions prior to 152.0.7977.65. Exploitation requires only a single user interaction - visiting a crafted HTML page - with no authentication or special privileges needed (CVSS 8.8, AV:N/AC:L/PR:N/UI:R). Despite full C/I/A impact within the sandbox, EPSS probability is low at 0.46% (38th percentile), SSVC exploitation status is 'none', and no public exploit or CISA KEV listing exists at time of analysis; a vendor patch has been released at version 152.0.7977.65.
Remote code execution inside the Chrome sandbox is achievable via a use-after-free in the WebRTC component of Google Chrome prior to 152.0.7977.65, exploitable by an unauthenticated remote attacker through crafted network traffic. The flaw requires high attack complexity (AC:H), constraining opportunistic mass exploitation, and code execution is limited to within the Chrome renderer sandbox, reducing but not eliminating post-exploitation impact. No public exploit code and no active exploitation have been identified at time of analysis, consistent with SSVC Exploitation: none and an EPSS of 0.66%.
Sandbox-escaping remote code execution affects Google Chrome desktop versions prior to 152.0.7977.65, where a use-after-free flaw in the Extensions component lets a remote attacker who convinces a victim to install a crafted extension execute arbitrary code outside the renderer sandbox. Chromium rates the severity High and CVSS scores it 9.6 due to the scope change (sandbox escape) and full confidentiality, integrity, and availability impact. There is no public exploit identified at time of analysis, and EPSS estimates near-term exploitation probability at only 0.28% (20th percentile).
Remote code execution in Google Chrome's ANGLE graphics component (versions prior to 152.0.7977.65) lets a remote attacker escape the browser sandbox and run arbitrary code by luring a victim to a crafted HTML page. The flaw is a use-after-free (CWE-416) rated 9.6/Critical with a scope change, meaning exploitation impacts the host beyond the compromised renderer. There is no public exploit identified at time of analysis, and CISA SSVC records exploitation status as none, though the EPSS score of 0.41% reflects only near-term probability, not the true severity of a sandbox-escaping RCE.
Remote code execution in Google Chrome's ANGLE graphics component (versions prior to 152.0.7977.65) lets a remote attacker escape the renderer sandbox and run arbitrary code on the host after a victim opens a crafted HTML page. The flaw is a CWE-416 use-after-free rated CVSS 9.6 with scope change, reflecting the sandbox escape. There is no public exploit identified at time of analysis, it is not in CISA KEV, and EPSS is low at 0.41%, but the sandbox-escaping RCE impact makes it a high-priority browser patch.
Remote code execution inside the Chrome sandbox affects Google Chrome prior to version 152.0.7977.65 through a use-after-free vulnerability in the Platform component, triggered when a user visits a specially crafted HTML page. An unauthenticated remote attacker can exploit this to execute arbitrary code within the browser sandbox, with full high-impact ratings on confidentiality, integrity, and availability. No public exploit code has been identified at time of analysis, and CISA has not added this to the Known Exploited Vulnerabilities catalog.
Sandbox-escaping remote code execution in Google Chrome (Aura component) affects all desktop builds prior to 152.0.7977.65, where a use-after-free lets a remote attacker who lures a victim to a crafted HTML page potentially execute arbitrary code outside the renderer sandbox. Rated High by Chromium and CVSS 9.6 due to the scope-changing sandbox escape, though exploitation requires the victim to load attacker-controlled content. No public exploit identified at time of analysis, and CISA SSVC currently marks exploitation status as none.
Sandbox-escaping remote code execution in Google Chrome's WebGL component affects all desktop builds prior to 152.0.7977.65. A crafted HTML page can trigger a use-after-free (CWE-416) whose exploitation, per the description, yields code execution outside the browser renderer sandbox - a notably severe outcome that Chrome typically confines. There is no public exploit identified at time of analysis and it is not on CISA KEV; EPSS is low at 0.33% (25th percentile), consistent with SSVC marking exploitation as 'none' despite total technical impact.
Use-after-free in the WebRTC component of Google Chrome before version 152.0.7977.65 enables remote code execution confined within the browser sandbox. Exploitation requires a victim to visit a specially crafted HTML page, placing UI:R as a meaningful friction point. No public exploit code has been identified and CISA has not added this to the Known Exploited Vulnerabilities catalog; SSVC also indicates no current exploitation activity. Despite a CVSS score of 8.8 and tags indicating RCE and memory corruption potential, the EPSS score of 0.33% at the 25th percentile reflects low observed exploitation probability relative to the broader vulnerability population.
Use-after-free in Google Chrome's Accessibility component (versions prior to 152.0.7977.65) enables remote attackers to execute arbitrary code outside the browser's renderer sandbox through social engineering. Exploitation requires user interaction with a malicious webpage or crafted UI element, making phishing or malvertising the likely delivery mechanism. A vendor patch is available in stable channel version 152.0.7977.65; no public exploit code or CISA KEV listing has been identified at time of analysis, and EPSS remains low at 0.23% (14th percentile), suggesting opportunistic exploitation is not currently observed.
Remote code execution in Google Chrome's Chromecast component (versions prior to 152.0.7977.65) stems from a use-after-free memory corruption flaw that enables remote attackers to execute arbitrary code within Chrome's renderer sandbox. Exploitation requires a victim to visit a crafted HTML page, making it network-reachable but not fully automated. No public exploit code has been identified at time of analysis, and the vulnerability is absent from the CISA Known Exploited Vulnerabilities catalog, with EPSS indicating low observed exploitation probability despite the high CVSS score.
Remote code execution in Google Chrome desktop before 152.0.7977.65 lets an unauthenticated attacker escape the renderer sandbox and run arbitrary code on the host when a victim opens a crafted web page. The bug is a use-after-free in the Views UI framework, rated High by Chromium and carrying a CVSS 9.6 due to a scope change (sandbox escape). No public exploit has been identified at time of analysis, and the EPSS probability is low (0.33%, 25th percentile).
Use-after-free in the Mobile component of Google Chrome on iOS prior to 152.0.7977.65 enables remote code execution outside the browser sandbox via crafted network traffic, requiring no user interaction. The sandbox escape elevates the severity beyond a typical renderer bug, as successful exploitation grants attacker-controlled code execution in a context beyond Chrome's sandboxed process. No public exploit identified at time of analysis, and the low EPSS score (0.28%, 20th percentile) suggests exploitation has not yet been observed in the wild despite the high CVSS rating.
Sandbox-escaping remote code execution in Google Chrome (Views UI component) before 152.0.7977.65 allows a remote attacker to run arbitrary code on the host after luring a victim to a crafted HTML page. The flaw is a CWE-416 use-after-free rated High by Chromium and CVSS 9.6 due to the scope change (sandbox escape), but requires user interaction (visiting an attacker-controlled page) and has no public exploit identified at time of analysis. EPSS is modest (0.46%, 38th percentile) and CISA SSVC reports no known exploitation.
Use-after-free in the Bluetooth component of Google Chrome prior to version 152.0.7977.65 enables remote attackers to execute arbitrary code outside the browser sandbox. Exploitation requires the attacker to socially engineer a victim into installing or triggering a crafted Chrome extension, after which the memory corruption in the Bluetooth subsystem is leveraged to escape Chrome's sandbox and achieve code execution at the OS level. No public exploit identified at time of analysis, and EPSS places this in the 20th percentile, suggesting limited active exploitation despite the high CVSS severity.
Use-after-free in Google Chrome's Chromoting (Chrome Remote Desktop) component on Windows enables a remote attacker who has already compromised the renderer process to escape Chrome's sandbox and execute arbitrary code at the browser or OS level via crafted network traffic. All Chrome versions prior to 152.0.7977.65 on Windows are affected. No public exploit code or CISA KEV listing exists; EPSS is low at 0.28% (20th percentile), but the scope-changing, full-CIA-impact sandbox escape warrants rapid deployment of the available patch.
Use-after-free in the Chromoting (Chrome Remote Desktop) component of Google Chrome on Windows prior to version 152.0.7977.65 enables remote attackers to execute arbitrary code outside Chrome's sandbox via crafted network traffic. The sandbox-escape outcome is the most critical aspect, elevating the real-world impact beyond a typical renderer flaw to full host-level code execution. No public exploit code has been identified at time of analysis; EPSS places exploitation probability at 0.28% (20th percentile), though the network vector and no-auth-required CVSS signal warrant prompt patching.
Sandbox escape via use-after-free in Google Chrome's Chromecast component lets a remote attacker who has already compromised the renderer process execute arbitrary code in the higher-privileged browser process, breaking out of the site-isolation sandbox. It affects Chrome desktop before 152.0.7977.65 and is triggered by luring a victim to a crafted HTML page (UI:R). No public exploit identified at time of analysis; EPSS is low at 0.33% (25th percentile) and CISA SSVC records exploitation status 'none'.
Use-after-free in Google Chrome's Script engine allows remote code execution confined to the renderer sandbox on all desktop platforms running versions prior to 152.0.7977.65. Exploitation requires only that a user visit a crafted HTML page - no authentication or special configuration is needed - making the attack surface broad wherever Chrome remains unpatched. No public exploit has been identified at time of analysis and CISA has not added this to KEV, but the CVSS 8.8 rating and SSVC 'total' technical impact designation warrant prompt patching across managed fleets.
Sandbox-escaping remote code execution in Google Chrome (desktop, versions before 152.0.7977.65) stems from a use-after-free in Aura, Chromium's UI/windowing framework. A remote attacker who lures a victim to a crafted HTML page can execute arbitrary code outside the browser sandbox, giving full control of the host process rather than just the renderer. Google rates the Chromium severity Critical; there is no public exploit identified at time of analysis, and EPSS exploitation probability is currently low (0.33%, 25th percentile).
Remote code execution in Google Chrome on macOS (versions prior to 152.0.7977.65) stems from a use-after-free in the Safe Browsing component that lets a remote attacker escape the renderer sandbox and run arbitrary code on the host. Exploitation requires luring a victim to a crafted HTML page (social engineering / user interaction), and Chromium rates the flaw Critical. There is no public exploit identified and the EPSS probability is low (0.57%), but a vendor patch is already available.
Sandbox-escaping remote code execution in Google Chrome for macOS (versions prior to 152.0.7977.65) stems from a use-after-free in the Views UI framework, letting a remote attacker run arbitrary code outside the renderer sandbox when a victim loads a crafted HTML page. Google rates the Chromium severity Critical and CVSS is 9.6, but there is no public exploit identified at time of analysis and EPSS is a low 0.41%. A vendor patch is available in the Stable channel update.
Remote code execution in Google Chrome desktop before 152.0.7977.65 lets a remote attacker escape the renderer sandbox and run arbitrary code on the host after a victim opens a crafted HTML page. The flaw is a use-after-free in Aura, Chromium's UI/windowing layer, and Google rates its Chromium security severity as Critical (CVSS 9.6, scope-changed). There is no public exploit identified at time of analysis and EPSS is low (0.46%, 38th percentile), but the sandbox-escape impact makes it a high-priority patch.
Sandbox escape via use-after-free in Chrome's Chromecast component allows remote code execution outside the browser sandbox on all platforms running Chrome prior to 152.0.7977.65. This is a chained exploit: an attacker must first compromise the renderer process, then leverage the Chromecast UAF to pivot into the browser process and escape Chrome's sandbox via a crafted HTML page. No public exploit code has been identified at time of analysis; Google has released a confirmed fix in version 152.0.7977.65.
Use-after-free in Google Chrome's Chromecast component allows a remote attacker who has already compromised the renderer process to escape the sandbox and execute arbitrary code on the underlying system via a crafted HTML page. Affected versions are all Chrome releases prior to 152.0.7977.65. No public exploit or CISA KEV listing exists at time of analysis, and EPSS sits at a low 0.46%, but SSVC rates technical impact as total given the sandbox-escape outcome.
Sandbox-escaping remote code execution in Google Chrome desktop before 152.0.7977.65 stems from a use-after-free in Aura, Chromium's UI/windowing framework. A remote attacker who lures a victim to a crafted HTML page can execute arbitrary code outside the browser sandbox, giving full control of the renderer host process. Google rates the Chromium severity Critical; there is no public exploit identified at time of analysis and it is not in CISA KEV, though the class of bug is historically high-value.
Sandbox-escaping remote code execution in Google Chrome for Android (versions before 152.0.7977.65) stems from a use-after-free in ANGLE, Chrome's graphics translation layer. A remote attacker who lures a victim to a crafted HTML page can execute arbitrary code outside the renderer sandbox, giving control at the browser-process privilege level. Chromium rates the flaw Critical; no public exploit has been identified at time of analysis, and the EPSS probability is low (0.35%).
CPU exhaustion denial-of-service in eml_parser (Python pip package, versions prior to 3.0.2) stems from a quadratic-time regex fix-point loop in the `noparenthesis` function used to strip parenthesized CFWS comments from `Received:` email headers. Remote, unauthenticated attackers can submit small, specially crafted EML files containing deeply nested parentheses that consume multiple seconds of CPU time per parsed message, degrading throughput and causing queue backpressure or service-level outages in synchronous email gateways, sandboxes, and real-time triage pipelines. No public exploit has been identified at time of analysis, but the attack is trivially reproducible from first principles using only the published advisory description.
Improper input validation in Adobe's CAI Content Credentials tooling - spanning both the C2PA Tool and the Content Credentials Rust SDK - enables a remote unauthenticated attacker to crash the application and cause a denial-of-service condition. Both library and CLI components are affected per CPE strings, meaning downstream applications that embed or invoke this SDK to validate content provenance may also be disrupted. No public exploit has been identified at time of analysis, but the zero-complexity, no-authentication, no-interaction attack surface makes the vulnerability straightforwardly reachable wherever the affected component processes untrusted input.
Integer underflow in Adobe's Content Credentials Rust SDK and C2PA Tool allows unauthenticated remote attackers to crash affected applications, producing a denial-of-service condition. The flaw (CWE-191) is triggered without user interaction and is reachable over the network with low attack complexity, making it straightforward to exploit against any service that processes C2PA content credential data using Adobe's SDK. No active exploitation has been confirmed (not in CISA KEV) and no public exploit code has been identified at time of analysis, but the zero-prerequisite attack surface warrants prompt patching.
Uncontrolled resource consumption in Adobe's Content Credentials ecosystem - specifically the c2pa_tool and Content Credentials Rust SDK - allows unauthenticated remote attackers to exhaust system resources and trigger application denial-of-service with no user interaction required. The CVSS vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) confirms a straightforward network-exploitable path requiring neither authentication nor privilege. No public exploit code or CISA KEV listing has been identified at time of analysis, and impact is confined to availability.
NULL pointer dereference in NVIDIA DGX Spark system firmware enables a local privileged attacker to achieve code execution with scope change into other system components. All versions of the DGX Spark firmware are affected per the wildcard CPE, with potential impacts spanning code execution, privilege escalation, denial of service, information disclosure, and data tampering. No public exploit code or CISA KEV listing has been identified at time of analysis.
Out-of-bounds write in NVIDIA DGX Spark system firmware enables a privileged local attacker to corrupt memory and achieve code execution, privilege escalation, denial of service, information disclosure, or data tampering. The CVSS scope-change indicator (S:C) is the critical risk amplifier here - successful exploitation can breach the firmware's security boundary and affect components outside it, including potentially the host OS or hypervisor layer. No public exploit code has been identified and this vulnerability is not listed in the CISA KEV catalog at time of analysis.
Out-of-bounds write in NVIDIA DGX Spark system firmware permits a locally authenticated, highly privileged attacker to corrupt firmware memory in a way that crosses the firmware's isolation boundary into the broader system. Successful exploitation may yield arbitrary code execution, privilege escalation beyond the initial firmware context, denial of service, information disclosure, and data tampering - all stemming from a single CWE-787 write primitive. No public exploit code or CISA KEV listing has been identified at time of analysis, but the scope-changing nature of the CVSS vector (S:C) elevates the potential blast radius significantly for affected AI compute infrastructure.
Denial-of-service vulnerabilities in rclone's archive backend SquashFS parser allow an attacker with write access to rclone-exposed storage to crash the rclone process or exhaust CPU. Affected versions v1.72.0 through v1.74.4 fail to validate attacker-controlled superblock and inode metadata values sourced from the go-diskfs dependency before use, enabling three distinct panic/loop conditions. When the :archive: remote is exposed via 'rclone serve sftp', exploitation crashes the entire SFTP server. No public exploit has been identified at time of analysis, but the attack surface is concrete and parser triggering is straightforward once a malicious image is placed.
Denial-of-service in Nokogiri before 1.19.3 stems from three distinct ReDoS vulnerabilities in the CSS selector tokenizer, affecting string-literal and identifier tokenization. Any Ruby application passing attacker-controlled input to `Node#css`, `Node#at_css`, `Nokogiri::CSS.xpath_for`, `Searchable#search`, or `CSS::Parser#parse` is vulnerable to exponential regex backtracking that can exhaust CPU resources and deny service. No public exploit code has been identified at time of analysis, but the unauthenticated network attack surface and low exploitation complexity make this a high-priority patch target for Nokogiri-dependent Ruby applications.
Out-of-bounds memory read in Nokogiri (CRuby) versions before 1.19.4 crashes the host Ruby process when application code incorrectly passes a non-Node argument to the protected internal `Node#initialize_copy_with_args` method. The method backs the public `Node#dup` and `#clone` APIs and, prior to 1.19.4, unwraps its argument directly as a libxml2 `xmlNode` struct without verifying the object's type, causing it to misread an `xmlNs` (Namespace) struct out of bounds. Critically, the vendor explicitly confirms this cannot be triggered by untrusted external input - only by a programming error in application code - making the provided CVSS 4.0 score of 8.7 (AV:N/PR:N) a significant overstatement of real-world risk. No public exploit has been identified at time of analysis.
Remote denial of service in OpenSSL's CMP subsystem affects versions 3.0.x through 4.0.x when password-based MAC (PBM)-protected messages are processed, caused by a missing ASN.1 type check that allows a crafted message to trigger an invalid pointer dereference before any MAC computation occurs. Unauthenticated remote attackers (CVSS PR:N) can crash applications acting as CMP servers via OSSL_CMP_SRV_process_request(), or crash CMP clients communicating with a malicious or intercepted CMP server. No public exploit has been identified at time of analysis; SSVC rates current exploitation as none, though the attack is rated automatable and requires no knowledge of the PBM shared secret.
Memory exhaustion in OpenSSL's QUIC stack allows any remote peer that completes a QUIC handshake to cause unbounded connection-scoped memory growth by sending repeated PING frames while withholding acknowledgments for ack-eliciting packets. Affected versions span OpenSSL 3.4.0 through early 4.0.x; TLS-only deployments and the FIPS module are unaffected. No public exploit code exists and SSVC confirms no active exploitation at time of analysis, though the attack is rated automatable (CVSS AV:N/AC:L/PR:N/UI:N), making concurrent-connection amplification straightforward.
Heap corruption in OpenSSL's CMS decryption path allows a remote unauthenticated attacker to crash any application invoking CMS_decrypt() on attacker-supplied ciphertext. The AES-WRAP-PAD unwrap primitive writes and cleanses up to the full input length on its integrity-failure path, while the CMS layer allocates a buffer sized only for the expected output - producing a fixed-size, fixed-value (zero) 8-byte overwrite immediately past the heap allocation. No public exploit has been identified at time of analysis, but the CVSS 7.5 rating and SSVC automatable classification indicate this can be reliably triggered at scale against any service that processes externally sourced CMS messages.
DTLS memory exhaustion in OpenSSL allows unauthenticated remote peers to consume disproportionate server memory during handshake processing. Sending small forged records that claim a future epoch triggers OpenSSL to buffer the entire ~16 KB read buffer rather than just the actual record bytes, yielding an amplification factor of approximately 1,200× per record; up to 100 such records may be queued per connection, exposing roughly 1.7 MB of server memory per association from a negligible volume of transmitted data. No public exploit has been identified at time of analysis and SSVC rates exploitation status as none, but the attack is rated automatable and can be multiplied across many concurrent DTLS connections.
Remote unauthenticated denial of service in OpenSSL's QUIC server stack (versions 3.5.x before 3.5.8, 3.6.x before 3.6.4, and 4.0.x before 4.0.2) allows an attacker to crash the QUIC server process by sending a single malformed INITIAL packet with a destination connection ID shorter than 8 bytes. The crafted packet triggers a double-free of the QUIC record layer RX (QRX) object, causing heap corruption and process termination. No public exploit has been identified; remote code execution is explicitly assessed as highly improbable by the vendor, and no public exploit or active exploitation has been confirmed.
NULL pointer dereference in OpenSSL's RFC7250 Raw Public Key (RPK) TLS extension handling crashes any server or client configured in key-only RPK mode when a remote peer sends the typically omitted `signature_algorithms_cert` extension. Affected versions span OpenSSL 3.4.x through 4.0.x; impact is strictly limited to a process-aborting Denial of Service - no data disclosure or code execution is possible. No public exploit exists and CISA SSVC rates active exploitation as none, but the attack is automatable against any reachable endpoint in this non-default configuration.
Denial of service in Ech0 before 5.0.1 allows unauthenticated remote attackers to saturate server CPU by exploiting a quadratic-time parsing bypass in the Accept-Language header processing chain. The i18n middleware, active on every HTTP request including unauthenticated public endpoints, forwards the raw header without size filtering to golang.org/x/text/language.ParseAcceptLanguage, where the CVE-2022-32149 mitigation caps '-' separators at 1000 but not '_' separators - which the parser aliases to '-' internally - enabling a single crafted 1 MiB request to consume roughly 1.5 seconds of CPU (~70x amplification). No CISA KEV listing is present and no public exploit code has been independently confirmed, though the GHSA advisory includes end-to-end verification and sufficient technical detail for reproduction.
Uncontrolled memory consumption in the JPXStream::readCodestream() function of Innodata Labs' Poppler fork allows remote, unauthenticated attackers to crash the pdftoppm process by supplying a maliciously crafted PDF containing JPXDecode image streams. The SIZ marker segment in a JPEG 2000 codestream provides attacker-controlled values - such as img.nComps - that are used directly in tile and component memory allocation without bounds validation, triggering out-of-memory conditions. No active exploitation has been confirmed (not in CISA KEV), no public proof-of-concept has been identified, and a vendor patch is available per INCIBE advisory.
Remote code execution and denial of service in the Zephyr RTOS OCPP 1.6 client (subsys/net/lib/ocpp) allows an attacker who controls or man-in-the-middles the central system endpoint to smash the OCPP reader thread's stack. A malicious GetConfiguration message with an over-long JSON "key" field triggers an unbounded strcpy() into a fixed 50-byte stack buffer, corrupting the reader thread's stack with attacker-chosen bytes. A vendor patch exists and no public exploit has been identified at time of analysis; CVSS is rated 9.8, though real-world reach is bounded by the OCPP-charging-station niche.
XML Entity Expansion (Billion Laughs) in NLTK before 3.10.3 allows unauthenticated remote attackers to cause denial of service by submitting crafted XML payloads with nested entity declarations that expand exponentially in memory. Multiple NLTK modules rely on Python's xml.etree.ElementTree parser, which honors DTD entity definitions, making them susceptible to this class of attack. No public exploit code has been identified at time of analysis, though the attack technique is universally documented and trivially constructable.
Regular Expression Denial of Service in SAP S/4HANA (Private Cloud) allows unauthenticated remote attackers to exhaust server resources by supplying specially crafted input to a network-accessible endpoint that invokes a vulnerable third-party regex component (CWE-1333). Successful exploitation causes high availability impact with no confidentiality or integrity exposure, making this a targeted disruption risk against a critical ERP platform. No active exploitation has been confirmed - the vulnerability is not listed in CISA KEV and no public exploit code has been identified at time of analysis.
Process-aborting denial of service in OpenEXR 3.4.0 through 3.4.12 allows an unauthenticated remote attacker to crash any application that calls exr_start_read() on a crafted HTJ2K-compressed EXR file. The crash originates in the vendored OpenJPH library, which invokes abort() unconditionally when a QCD marker's lower five bits are zero - an assertion failure that OpenEXR's partial error handling cannot intercept because codestream read and construction calls are left unprotected. No public exploit has been identified at time of analysis; the vulnerability is patched in version 3.4.13.
Unbounded abort listener accumulation in js-libp2p's circuit-relay-v2 relay server allows any remote peer to exhaust memory and deny service by repeatedly sending valid RESERVE requests for the same reservation slot. The `reservation-store.ts` reservation refresh path reuses an existing `retimeableSignal` but unconditionally registers a new abort listener on every call, causing listeners and their closures to grow without bound. No authentication is required to trigger this, making it exploitable by any peer that can reach the relay server. No public exploit or CISA KEV listing exists at time of analysis, though the unauthenticated network vector and trivial trigger condition make it a credible operational risk for relay operators.
Denial-of-service in Mistune Python Markdown parser versions 3.3.0-3.3.2 allows remote unauthenticated attackers to crash any process that renders user-supplied Markdown by submitting input with hundreds of consecutive asterisk characters. The recursive HTMLRenderer.render_token() traversal grows proportionally to emphasis nesting depth and exceeds Python's default recursion limit, raising an unhandled RecursionError that terminates the parsing process. No public exploit identified at time of analysis, though the fix commit itself demonstrates the attack pattern explicitly in its regression test suite.
Out-of-bounds read in SpaceDot AcubeSAT On-Board Computer software exposes the spacecraft's CAN bus message handler to denial-of-service attacks. An attacker with access to the CAN bus network can send a crafted PerformFunction message to the OBC, triggering an out-of-bounds read in the CAN::Application::parsePerformFunctionMessage component that crashes the on-board computer. No public exploit identified at time of analysis, and EPSS exploitation probability sits at 0.14% (4th percentile), consistent with a highly specialized embedded aerospace target.
Stack-based buffer overflow in the SpaceDot AcubeSAT On-Board Computer (OBC) software allows remote unauthenticated attackers to crash the OBC by sending a crafted ECSS Telecommand (TC) message to the loadRawData function. The vulnerability, traced to commit eaf90ec, results in availability loss only - no confidentiality or integrity impact is indicated. No public exploit code or active exploitation has been confirmed; EPSS sits at 0.14% (4th percentile), consistent with the niche, mission-specific deployment footprint of this software.
Three compounding authentication weaknesses in RansomLook's /login endpoint allow an unauthenticated remote attacker to enumerate valid usernames via response-time differences, conduct unlimited brute-force or credential-stuffing attacks against discovered accounts, and exhaust the application's synchronous Gunicorn worker pool through a sustained login flood causing application-wide denial of service. All versions matching cpe:2.3:a:ransomlook:ransomlook:*:*:*:*:*:*:*:* are affected prior to the upstream fix commit. No public exploit code or CISA KEV listing has been identified at time of analysis; the CVSS 4.0 score of 8.8 is driven by the combination of confidentiality leakage (username enumeration) and high availability impact (worker exhaustion).
Buffer overflow in DrayTek VigorSwitch's mail_mailalert function allows authenticated remote attackers with valid administrative credentials to cause a denial of service or potentially execute arbitrary commands across approximately 28 affected managed switch models. The flaw stems from unbounded concatenation of multiple SMTP receiver email addresses into a fixed-size buffer, reachable via the device's web management interface. No public exploit code or CISA KEV listing has been identified at time of analysis, though the CVSS 4.0 score of 8.6 reflects high potential impact to confidentiality, integrity, and availability.
Buffer overflow in DrayTek VigorSwitch's diag_logmail function allows authenticated administrators to cause denial of service or potentially execute arbitrary commands on affected network switches. The flaw, reported by VulnCheck and acknowledged in DrayTek's August 2026 security advisory, affects a broad range of VigorSwitch models spanning SMB and enterprise product lines. Exploitation requires valid administrative credentials, limiting opportunistic attack surface, but a compromised or rogue admin account can fully compromise device confidentiality, integrity, and availability. No public exploit code and no CISA KEV listing identified at time of analysis.
Buffer overflow in DrayTek VigorSwitch web management interface allows authenticated remote administrators to cause denial of service or potentially execute arbitrary commands on affected managed switches. The flaw resides in the acl_general_setup Edit ACE function, where the name field is copied into a fixed-size stack buffer without length validation (CWE-120). No public exploit code has been identified at time of analysis, and exploitation is gated behind valid administrative credentials, meaningfully reducing the attack surface compared to unauthenticated network flaws.
Buffer overflow in DrayTek VigorSwitch's ACL configuration function exposes authenticated administrators to denial of service or potential arbitrary command execution via the device's web management interface. The root cause - an unbounded strcpy-style copy of a user-supplied name field into a fixed-size stack or heap buffer inside acl_general_setup's Add ACE handler - is a classic CWE-120 defect reachable over the network from any host with management-plane access. Exploitation requires valid administrative credentials (CVSS PR:H), substantially limiting the attack surface; no public exploit code has been identified at time of analysis, and this CVE does not appear in the CISA KEV catalog.
Buffer overflow in DrayTek VigorSwitch's switch_lan_gvrp function exposes multiple managed switch models to denial of service or potential arbitrary command execution from remote, authenticated attackers. The flaw stems from unsafe copying of a user-supplied portList field into an undersized stack or heap buffer within the GVRP handling code - a classic CWE-120 defect reachable via the device's web management interface. No public exploit code and no CISA KEV listing have been identified at time of analysis, and exploitation is gated behind valid administrative credentials, which meaningfully constrains real-world attacker opportunity.
Buffer overflow in DrayTek VigorSwitch's PoE schedule profile function allows authenticated remote administrators to cause denial of service or execute arbitrary commands on affected network switches. The flaw spans at least 10 CPE-confirmed models and an even wider set per VulnCheck tags, covering much of the VigorSwitch product line. No public exploit code and no CISA KEV listing have been identified at time of analysis, but DrayTek has published a security advisory acknowledging the issue.
Buffer overflow in the sysreboot function of multiple DrayTek VigorSwitch managed switch models allows authenticated remote attackers to cause denial of service or execute arbitrary commands. The root cause (CWE-120) is unsafe concatenation of split valueN attacker-controlled data into a fixed-size buffer in the device's web management firmware, exploitable over the network by any party holding valid administrative credentials. No public exploit code or CISA KEV listing has been identified at time of analysis.
Stack buffer overflow in DrayTek VigorSwitch's webBackupAction function enables authenticated administrators to trigger denial of service or arbitrary code execution by submitting crafted HTTP requests with excessively long pathN, valueN, key, and option parameters. Exploitation is gated behind valid administrative credentials (CVSS PR:H), limiting direct internet exposure but creating meaningful risk via compromised admin accounts or insider threats. No public exploit identified at time of analysis and no CISA KEV listing, though the CWE-120 root cause class is well-understood and device-accessible researchers could feasibly develop working exploits.
Buffer overflow in DrayTek VigorSwitch's pingtrace diagnostic function allows authenticated remote attackers to cause denial of service or achieve arbitrary command execution across a broad range of VigorSwitch hardware models. The flaw arises from absent length validation when user-supplied host, count, and interval parameters are concatenated into a statically allocated buffer in the web management firmware. No public exploit is identified at time of analysis, and exploitation is gated behind valid administrative credentials, but the severity of achievable impact - full device compromise - warrants prompt patching on any network where VigorSwitch units are deployed.
Denial of service in multiple DrayTek VigorSwitch managed switch models can be triggered remotely without authentication via the setget.cgi web management interface. The root cause is a null pointer dereference (CWE-476) triggered when the `pass` field is absent from a crafted request, crashing the CGI service. The CVSS 4.0 score of 8.7 (AV:N/AC:L/AT:N/PR:N/UI:N) confirms trivial remote exploitability with no prerequisites; no public exploit or CISA KEV listing has been identified at time of analysis.
Buffer overflow in the apautotest function of DrayTek VigorAP firmware allows an authenticated remote attacker with administrative credentials to cause denial of service or potentially execute arbitrary commands across six affected device models. The root cause is CWE-120 (Classic Buffer Overflow) - the CMD6 field undergoes memory copy operations without length validation, enabling controlled heap or stack corruption. No public exploit code has been identified at time of analysis, the vulnerability is absent from CISA KEV, and a vendor-released patch is confirmed available via DrayTek's August 2026 security advisory.
Buffer overflow in the setLan function of multiple DrayTek VigorAP access point models enables authenticated remote attackers to cause denial of service or execute arbitrary commands on affected devices. Six distinct VigorAP models - 903, 906, 912C, 918R, 960C, and 1060C - are confirmed affected across specific firmware version ranges, all patched by DrayTek in an August 2026 advisory. No public exploit identified at time of analysis, though the vulnerability was independently reported by VulnCheck and the impact class (RCE and DoS) raises operational risk for any organization where VigorAP admin interfaces are reachable from untrusted networks.