CVE-2026-17673: Integer overflow in Google Chrome
An integer overflow vulnerability exists in the QUIC implementation of Google Chrome versions prior to 151.0.7922.72. This flaw allows a remote attacker who has already compromised the renderer process to potentially escape the sandbox by using a specially crafted HTML page. The vulnerability is rated critical with a CVSS score of 9.6.
AI Analysis
Technical Summary
CVE-2026-17673 is an integer overflow vulnerability in the QUIC protocol implementation within Google Chrome before version 151.0.7922.72. Exploitation requires prior compromise of the renderer process and could enable an attacker to perform a sandbox escape, thereby increasing their privileges on the affected system. The vulnerability has a high severity rating from Chromium security and a CVSS v3.1 score of 9.6, indicating critical impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation can lead to sandbox escape from the renderer process, potentially allowing an attacker to execute code with higher privileges than normally permitted within the browser sandbox. This elevates the risk of further system compromise beyond the browser context.
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. Refer to the official Google Chrome stable channel update advisory at https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html for details.
CVE-2026-17673: Integer overflow in Google Chrome
Description
An integer overflow vulnerability exists in the QUIC implementation of Google Chrome versions prior to 151.0.7922.72. This flaw allows a remote attacker who has already compromised the renderer process to potentially escape the sandbox by using a specially crafted HTML page. The vulnerability is rated critical with a CVSS score of 9.6.
CVSS v3.1
Score 9.6critical
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-17673 is an integer overflow vulnerability in the QUIC protocol implementation within Google Chrome before version 151.0.7922.72. Exploitation requires prior compromise of the renderer process and could enable an attacker to perform a sandbox escape, thereby increasing their privileges on the affected system. The vulnerability has a high severity rating from Chromium security and a CVSS v3.1 score of 9.6, indicating critical impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation can lead to sandbox escape from the renderer process, potentially allowing an attacker to execute code with higher privileges than normally permitted within the browser sandbox. This elevates the risk of further system compromise beyond the browser context.
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. Refer to the official Google Chrome stable channel update advisory at https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html for details.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-07-27T23:34:19.690Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html","vendor":"Google"}]
Threat ID: 6a6aa07f9c2644c7f849a6fe
Added to database: 07/30/2026, 00:53:19 UTC
Last enriched: 08/06/2026, 17:26:34 UTC
Last updated: 09/12/2026, 10:01:29 UTC
Views: 71
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.