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Exploited vulnerability · CISA KEV

Is CVE-2025-6558 exploited? Yes: in CISA KEV since 22 Jul 2025

Gociux · Google Chromium · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2025-6558, Google Chromium ANGLE and GPU Improper Input Validation Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 22 Jul 2025, 7 days after it was published. It affects Google Chromium. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 22 Jul 2025
ransomwareNot knownno confirmed use
EPSStop 5%very likely to be exploited
severity8.8CVSS 3.1 · high
US federal due12 Aug 2025BOD 22-01 deadline

What it is

Google Chromium contains an improper input validation vulnerability in ANGLE and GPU. This vulnerability could allow a remote attacker to potentially perform a sandbox escape via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

VendorGoogle (77 exploited CVEs in KEV)
ProductChromium
VulnerabilityGoogle Chromium ANGLE and GPU Improper Input Validation Vulnerability
WeaknessCWE-20
Published15 Jul 2025
Added to KEV22 Jul 2025
Reported by (CNA)Chrome

What to do

  1. Check whether you run it. Look for Chromium in your asset inventory, including appliances and cloud images. Stack check lists every exploited Google CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 15 Jul 2025.
  4. Get told next time. Email alerts when CISA adds a CVE for Google.

Other exploited CVEs in Chromium

References

Questions

Is CVE-2025-6558 being exploited?

Yes. CISA added CVE-2025-6558 to the Known Exploited Vulnerabilities catalog on 22 Jul 2025, which means there is reliable evidence of exploitation in the wild.

Is CVE-2025-6558 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2025-6558?

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Check Google's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Chromium and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in July 2025 · Google scorecard · act-now radar.

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