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CVE-2023-6509

25
FAUCET Score

CVE-2023-6509 is a high-severity use-after-free vulnerability in Google Chrome's Side Panel Search, affecting versions prior to 120.0.6099.62, as well as various Debian and Fedora distributions. This flaw allows a remote attacker to potentially exploit heap corruption through specific user interface interaction, leading to high impacts on confidentiality, integrity, and availability. While it has a high CVSS score of 8.8 and has garnered some media attention, there is currently no evidence of active exploitation, nor is public exploit code available in Metasploit, Nuclei, or ExploitDB.

Impacted Technologies

VendorProductVersion(s)CPE
>= 120.0.6099.62, < 120.0.6099.62CPE match
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
12.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
38CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
39CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.99%
Probability of exploitation in next 30 days
EPSS Percentile
59.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0099 is in the 60th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

microsoftpatch availablevia msrc
Product: Microsoft Edge (Chromium-based)Fixed in: 120.0.2210.61
googlevendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

microsoft2023-Dec/CVE-2023-6509

Chromium: CVE-2023-6509 Use after free in Side Panel Search

Dec 12, 2023

References

chromereleases.googleblog.com / 2023/12/stable-channel-update-for-desktop.html
Release NotesVendor Advisory
crbug.com / 1494565
Permissions Required
lists.fedoraproject.org / archives/list/[email protected]/message/MMHY76AWPA46MAFXPWDGJX6FEGXZVR5Z
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/[email protected]/message/RI3UHCTFH6KWAJGDZ2TOLT6VHKW53WCC
Mailing ListThird Party Advisory
security.gentoo.org / glsa/202401-34
Third Party Advisory
debian.org / security/2023/dsa-5573
Third Party Advisory