CVE-2025-6558 — Google Chromium ANGLE and GPU Improper Input Validation Vulnerability

Insufficient validation of untrusted input in ANGLE and GPU in Google Chrome prior to 138.0.7204.157 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

01What is this vulnerability?

Insufficient validation of untrusted input in ANGLE and GPU in Google Chrome prior to 138.0.7204.157 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

02Affected products

Vendor	Product	Versions
Google	Chrome	138.0.7204.157

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2025-07-22. Ransomware use: Unknown.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2025-07-15T18:12:36.848Z
• Last modified: 2026-02-26T17:50:40.914Z
• Added to CISA KEV: 2025-07-22
• BOD 22-01 due: 2025-08-12

09References

• chromereleases.googleblog.com — https://chromereleases.googleblog.com/2025/07/stable-channel-update-for-desktop_…
• issues.chromium.org — https://issues.chromium.org/issues/427162086