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Vulnerabilities

Vulnerability · CVE-2025-9478

Use after free in ANGLE in Google Chrome prior to 139.0.7258.154 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Published Aug 26, 2025 · catalog updated Feb 26, 2026 · Google Chrome

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-9478. EPSS is 7.42%. Act only if a listed version of Google Chrome is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High8.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
7.42%
Remediation
Version ranges on file
Affected products
vendor Google Chrome 139.0.7258.154 <139.0.7258.154

Use after free in ANGLE in Google Chrome prior to 139.0.7258.154 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Google Chrome 139.0.7258.154 <139.0.7258.154139.0.7258.154 <139.0.7258.154

How to fix CVE-2025-9478

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-9478. EPSS is 7.42%. Act only if a listed version of Google Chrome is installed.

Which versions are affected?

Compare what you have installed with Google Chrome 139.0.7258.154 <139.0.7258.154 139.0.7258.154 <139.0.7258.154. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 7.42%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 26, 2025 · EUVD

    Detected

    Use after free in ANGLE in Google Chrome prior to 139.0.7258.154 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)

  2. Feb 26, 2026 · EUVD

    Updated

    Use after free in ANGLE in Google Chrome prior to 139.0.7258.154 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)

Sources

  • CVE.orgVulnerability recordCVE-2025-9478

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-9478

    30-day exploitation probability 7.42%

    first.org
  • EUVDVulnerability recordEUVD-2025-25822

    Use after free in ANGLE in Google Chrome prior to 139.0.7258.154 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 29, 2026
  • CVE.orgOct 22, 2026
  • EUVDOct 22, 2026