CVE-2025-6558
HIGH CISA KEV Actively Exploitedchromium-browser: Chromium insufficient validation
CVSS v3
8.8
HIGH
EPSS Score
0.2%
exploit probability
CISA KEV
Yes
known exploited
Exploitation
active
SSVC status
Description
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)
CISA Known Exploited Vulnerability
- Date Added
- 7/22/2025
- Patch Due Date
- 8/12/2025
- Required Action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Technical Details
- CVSS v3 Vector
- 3.1
- Published
- 7/15/2025
- Last Modified
- 11/6/2025
Frequently Asked Questions
What is CVE-2025-6558?
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)
Is CVE-2025-6558 actively exploited?
Yes. CVE-2025-6558 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 8/12/2025.
What is the CVSS score for CVE-2025-6558?
CVE-2025-6558 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string 3.1.
Is CVE-2025-6558 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.