EUVD-2026-66026
GHSA-5h8j-94mf-h65q
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Network-delivered via HTML page requiring victim navigation; no privileges or configuration needed; scope unchanged as exploitation is confined to the Chrome renderer sandbox.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
Integer overflow in WebRTC in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low)
AnalysisAI
Integer overflow in the WebRTC component of Google Chrome prior to 152.0.7977.65 enables remote code execution confined to the browser's sandbox via a crafted HTML page. The flaw requires no authentication (PR:N) and no special browser configuration, as WebRTC is enabled by default, but it does require the victim to visit an attacker-controlled page (UI:R). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to visit a specially crafted HTML page using Google Chrome prior to 152.0.7977.65; no elevated privileges or special browser configuration are required, as WebRTC is active by default in all Chrome installations. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 base score (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) captures the theoretical severity of the flaw but must be weighed against converging signals that suggest low near-term exploitation likelihood. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker hosts a specially crafted HTML page embedding WebRTC session negotiation data designed to trigger the integer overflow in Chrome's WebRTC parser. A victim is directed to the page via a phishing link, malvertising redirect, or compromised website, causing heap memory corruption in the renderer process that an attacker leverages for code execution within the Chrome sandbox. … |
| Remediation | Update Google Chrome to version 152.0.7977.65 or later via the browser's built-in update mechanism or the stable channel release page at https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit your organization's Chrome version distribution to identify systems running versions prior to 152.0.7977.65 and initiate an advisory to all users recommending immediate manual updates. …
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Same weakness CWE-190 – Integer Overflow or Wraparound
View allSame technique Integer Overflow
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External POC / Exploit Code
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