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CRITICAL · 9.6

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. (Ch...

Vulnerability 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 Score

9.6

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
GoogleChrome< 151.0.7922.72

Related Weaknesses (CWE)

CWE-190

References

FAQ

What is CVE-2026-17673?

CVE-2026-17673 is a vulnerability with a CVSS score of 9.6 (CRITICAL). 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. (Ch...

How severe is CVE-2026-17673?

CVE-2026-17673 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-17673?

Check the references section above for vendor advisories and patch information. Affected products include: Google Chrome.