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Vulnerabilities

Vulnerability · CVE-2025-8582

Insufficient validation of untrusted input in Core in Google Chrome prior to 139.0.7258.66 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HT

Published Aug 7, 2025 · catalog updated Aug 11, 2025 · Google Chrome

Check this week

CVE-2025-8582 is not in CISA KEV. FIRST estimates a 24.00% chance of exploitation in the next 30 days. Check whether you run Google Chrome.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium4.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
24.00%
Remediation
Version ranges on file
Affected products
vendor Google Chrome 139.0.7258.66 <139.0.7258.66

Insufficient validation of untrusted input in Core in Google Chrome prior to 139.0.7258.66 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (Chromium security severity: Low)

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 139.0.7258.66 <139.0.7258.66139.0.7258.66 <139.0.7258.66

How to fix CVE-2025-8582

  • Recommended remediation

    Affected version ranges suggest a fixed boundary. Verify against the vendor advisory for your release.

  • Official advisories

What to do

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

Should you patch?

CVE-2025-8582 is not in CISA KEV. FIRST estimates a 24.00% chance of exploitation in the next 30 days. Check whether you run Google Chrome.

Which versions are affected?

Compare what you have installed with Google Chrome 139.0.7258.66 <139.0.7258.66 139.0.7258.66 <139.0.7258.66. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 24.00%. 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 7, 2025 · EUVD

    Detected

    Insufficient validation of untrusted input in Core in Google Chrome prior to 139.0.7258.66 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (Chromium security severity: Low)

  2. Aug 11, 2025 · EUVD

    Updated

    Insufficient validation of untrusted input in Core in Google Chrome prior to 139.0.7258.66 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (Chromium security severity: Low)

Sources

  • EUVDVulnerability recordEUVD-2025-23903

    Insufficient validation of untrusted input in Core in Google Chrome prior to 139.0.7258.66 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (Chromium security severity: Low)

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Aug 11, 2025. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.