EUVD-2026-74479
GHSA-jmmc-5xxg-3mhf
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Network-delivered via web page (AV:N), no special configuration needed (AC:L), unauthenticated (PR:N), requires user to visit page (UI:R), sandbox-contained scope (S:U), full renderer process compromise (C:H/I:H/A:H).
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
4DescriptionCVE.org
Buffer overflow in WebRTC in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low)
AnalysisAI
Heap-based buffer overflow in Google Chrome's WebRTC component (all versions prior to 153.0.8010.36) enables a remote unauthenticated attacker to potentially execute arbitrary code within the Chrome renderer sandbox by luring a target to a crafted HTML page. The vulnerability is classified CWE-122 and carries a CVSS base score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H); however, Chromium's own internal severity rating is 'Low,' which is notably discordant and implies that exploitation is constrained to within-sandbox code execution rather than full OS compromise. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must induce the target to visit a crafted HTML page in an unpatched Chrome browser (any version below 153.0.8010.36), providing one click of user interaction (UI:R). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 score places this in the 'High' tier, yet Chromium's own internal severity is rated 'Low' - a deliberate signal that the exploit impact is bounded by the sandbox and that the Chrome security team assesses exploitation as non-trivial or of limited consequence in isolation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | The vendor-released patch is Google Chrome version 153.0.8010.36, which addresses this heap buffer overflow in WebRTC. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory Chrome deployment across the organization, categorize endpoints by business criticality, and notify users that a patch is required. …
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Same weakness CWE-122 – Heap-based Buffer Overflow
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External POC / Exploit Code
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