CVE-2023-6509

Name: CVE-2023-6509
Creator: NVD / NIST
Published: 2023-12-06T02:15:07.343+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.99%

Last modified Jun 17, 2026

CVE-2023-6509 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Use after free in Side Panel Search in Google Chrome prior to 120.0.6099.62 allowed a remote attacker who convinced a user to engage in specific UI interaction to potentially exploit heap corruption via specific UI interaction. (Chromium security severity: High). EPSS estimates a 0.99% chance of exploitation in the next 30 days.

Description

Use after free in Side Panel Search in Google Chrome prior to 120.0.6099.62 allowed a remote attacker who convinced a user to engage in specific UI interaction to potentially exploit heap corruption via specific UI interaction. (Chromium security severity: High)

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.99%

58.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Debian	Debian Linux	11.0
Debian	Debian Linux	12.0
Fedoraproject	Fedora	38
Fedoraproject	Fedora	39
Google	Chrome	< 120.0.6099.62

References

https://chromereleases.googleblog.com/2023/12/stable-channel-update-for-desktop.htmlRelease Notes, Vendor Advisory
https://crbug.com/1494565Permissions Required
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MMHY76AWPA46MAFXPWDGJX6FEGXZVR5Z/Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RI3UHCTFH6KWAJGDZ2TOLT6VHKW53WCC/Mailing List, Third Party Advisory
https://security.gentoo.org/glsa/202401-34Third Party Advisory
https://www.debian.org/security/2023/dsa-5573Third Party Advisory
https://chromereleases.googleblog.com/2023/12/stable-channel-update-for-desktop.htmlRelease Notes, Vendor Advisory
https://crbug.com/1494565Permissions Required
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MMHY76AWPA46MAFXPWDGJX6FEGXZVR5Z/Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RI3UHCTFH6KWAJGDZ2TOLT6VHKW53WCC/Mailing List, Third Party Advisory
https://security.gentoo.org/glsa/202401-34Third Party Advisory
https://www.debian.org/security/2023/dsa-5573Third Party Advisory

Timeline

Published: Dec 6, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-6509?

How severe is CVE-2023-6509?

CVE-2023-6509 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.99% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6509?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-6509?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST