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CVE-2023-4349

25
FAUCET Score

CVE-2023-4349 is a high-severity use-after-free vulnerability in Google Chrome's Device Trust Connectors, affecting versions prior to 116.0.5845.96, as well as various Debian and Fedora distributions. This flaw allows a remote attacker to potentially corrupt the heap and achieve high impact on confidentiality, integrity, and availability by enticing a user to visit a crafted HTML page. While the vulnerability has a high CVSS score of 8.8 and has garnered significant media coverage and community discussion, there is currently no evidence of active exploitation, nor are there publicly available exploit modules or proof-of-concept code.

Impacted Technologies

VendorProductVersion(s)CPE
>= 116.0.5845.96, < 116.0.5845.96CPE match
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
< 116.0.5845.96CPE matchmatch criteria
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:*:*:*:*:*:*:*

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
0.83%
Probability of exploitation in next 30 days
EPSS Percentile
53.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0083 is in the 55th 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: 116.0.1938.54
googlevendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

microsoft2023-Aug/CVE-2023-4349

Chromium: CVE-2023-4349 Use after free in Device Trust Connectors

Aug 8, 2023

References

chromereleases.googleblog.com / 2023/08/stable-channel-update-for-desktop_15.html
Release NotesVendor Advisory
crbug.com / 1458303
Permissions Required
lists.fedoraproject.org / archives/list/[email protected]/message/2DMXHPRUGBUDNHZCZCIVMWAUIEXEGMGT
lists.fedoraproject.org / archives/list/[email protected]/message/OCFEK63FUHFXZH5MSG6TNQOXMQWM4M5S
Third Party Advisory
security.gentoo.org / glsa/202401-34
debian.org / security/2023/dsa-5479
Mailing ListThird Party Advisory