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CVE-2023-4076

24
FAUCET Score

CVE-2023-4076 is a high-severity use-after-free vulnerability affecting Google Chrome versions prior to 115.0.5790.170, specifically within its WebRTC component. This flaw allows a remote attacker to potentially achieve heap corruption by enticing a user to engage in a specially crafted WebRTC session. With a CVSS score of 8.8, it presents a high risk due to its network-based attack vector, low attack complexity, and potential for high impact on confidentiality, integrity, and availability. While not currently listed in CISA's KEV catalog and lacking public exploit code in Metasploit or ExploitDB, its mention in media coverage and community discussions indicates some awareness, though active exploitation is not confirmed.

Impacted Technologies

VendorProductVersion(s)CPE
>= 115.0.5790.170, < 115.0.5790.170CPE match
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
< 115.0.5790.170CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

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
0.94%
Probability of exploitation in next 30 days
EPSS Percentile
57.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0094 is in the 59th 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: 115.0.1901.200
googlevendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

microsoft2023-Aug/CVE-2023-4076

Chromium: CVE-2023-4076 Use after free in WebRTC

Aug 8, 2023

References

chromereleases.googleblog.com / 2023/08/stable-channel-update-for-desktop.html
Release NotesVendor Advisory
crbug.com / 1459124
Permissions Required
lists.fedoraproject.org / archives/list/[email protected]/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ
security.gentoo.org / glsa/202311-11
security.gentoo.org / glsa/202312-07
security.gentoo.org / glsa/202401-34
debian.org / security/2023/dsa-5467