Integer overflow in QUIC in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially… (CVE-2026-17673)
Integer overflow in QUIC in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
AI Analysis
Technical Summary
CVE-2026-17673 is an integer overflow vulnerability in the QUIC protocol handling within Google Chrome before version 151.0.7922.72. Exploitation requires prior compromise of the renderer process and could lead to a sandbox escape, increasing the attacker's privileges within the browser environment. The vulnerability is tracked as CWE-190 (Integer Overflow or Wraparound). No CVSS score is provided, but Chromium rates the severity as high.
Potential Impact
If exploited, an attacker who has compromised the renderer process could leverage this integer overflow to escape the sandbox protections of Google Chrome. This could allow the attacker to execute code with higher privileges than normally permitted within the browser sandbox, potentially leading to further system compromise.
Mitigation Recommendations
A fix is available in Google Chrome version 151.0.7922.72. Users and administrators should update to this version or later to remediate the vulnerability. Since this is not a cloud service, remediation depends on applying the browser update. Patch status is confirmed by the version information in the description.
Integer overflow in QUIC in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially… (CVE-2026-17673)
Description
Integer overflow in QUIC in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
CVSS v3.1
Score 9.6critical
Affected software
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-17673 is an integer overflow vulnerability in the QUIC protocol handling within Google Chrome before version 151.0.7922.72. Exploitation requires prior compromise of the renderer process and could lead to a sandbox escape, increasing the attacker's privileges within the browser environment. The vulnerability is tracked as CWE-190 (Integer Overflow or Wraparound). No CVSS score is provided, but Chromium rates the severity as high.
Potential Impact
If exploited, an attacker who has compromised the renderer process could leverage this integer overflow to escape the sandbox protections of Google Chrome. This could allow the attacker to execute code with higher privileges than normally permitted within the browser sandbox, potentially leading to further system compromise.
Mitigation Recommendations
A fix is available in Google Chrome version 151.0.7922.72. Users and administrators should update to this version or later to remediate the vulnerability. Since this is not a cloud service, remediation depends on applying the browser update. Patch status is confirmed by the version information in the description.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-vfc9-3hpj-ph62
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-17673"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a6ae5219c2644c7f8983994
Added to database: 07/30/2026, 05:46:09 UTC
Last enriched: 07/30/2026, 06:51:03 UTC
Last updated: 07/31/2026, 21:17:48 UTC
Views: 3
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.