CVE-2023-6706

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-12-14 · updated 2026-06-17
Weakness: CWE-416

Description

Use after free in FedCM in Google Chrome prior to 120.0.6099.109 allowed a remote attacker who convinced a user to engage in specific UI interaction to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Affected products

Google Chrome: before 120.0.6099.109 — fixed in 120.0.6099.109

How to fix

Upgrade to a fixed version: Google Chrome 120.0.6099.109. Check the vendor advisory for mitigations.

References

https://chromereleases.googleblog.com/2023/12/stable-channel-update-for-desktop_12.html
https://crbug.com/1500921
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6NWZ23ZJ62XKWVNGHSIZQYILVJWH5BLI/
https://security.gentoo.org/glsa/202401-34
https://chromereleases.googleblog.com/2023/12/stable-channel-update-for-desktop_12.html
https://crbug.com/1500921
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6NWZ23ZJ62XKWVNGHSIZQYILVJWH5BLI/
https://security.gentoo.org/glsa/202401-34

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