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Vulnerabilities

Security incident · CVE-2025-10890

Side-channel information leakage in V8 in Google Chrome prior to 140.0.7339.207 allowed a remote attacker to leak cross-origin data via a crafted HTML page.

Published Sep 24, 2025 · catalog updated Sep 24, 2025 · Google Chrome

Last checked Oct 31, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-10890. EPSS is 0.36%. 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
Critical9.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.36%
Remediation
Version ranges on file
Affected products
vendor Google Chrome 140.0.7339.207 <140.0.7339.207

Side-channel information leakage in V8 in Google Chrome prior to 140.0.7339.207 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

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 140.0.7339.207 <140.0.7339.207140.0.7339.207 <140.0.7339.207

How to fix CVE-2025-10890

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-2025-10890. EPSS is 0.36%. Act only if a listed version of Google Chrome is installed.

Which versions are affected?

Compare what you have installed with Google Chrome 140.0.7339.207 <140.0.7339.207 140.0.7339.207 <140.0.7339.207. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.36%. 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. Sep 24, 2025 · EUVD

    Detected

    Side-channel information leakage in V8 in Google Chrome prior to 140.0.7339.207 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

  2. Sep 24, 2025 · EUVD

    Updated

    Side-channel information leakage in V8 in Google Chrome prior to 140.0.7339.207 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

Sources

  • CVE.orgVulnerability recordCVE-2025-10890

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-10890

    30-day exploitation probability 0.36%

    first.org
  • EUVDVulnerability recordEUVD-2025-31016

    Side-channel information leakage in V8 in Google Chrome prior to 140.0.7339.207 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 31, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 31, 2026
  • CVE.orgOct 23, 2026
  • EUVDOct 23, 2026