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CVE-2023-1218

27
FAUCET Score

CVE-2023-1218 is a high-severity use-after-free vulnerability in Google Chrome's WebRTC component, affecting versions prior to 111.0.5563.64. A remote attacker can exploit this flaw by crafting a malicious HTML page, potentially leading to heap corruption. With a CVSS score of 8.8, this vulnerability is easily exploitable over a network with user interaction, allowing for high impact on confidentiality, integrity, and availability. While not currently listed on CISA's KEV catalog, there is no public exploit code available (Metasploit, Nuclei, ExploitDB), and community discussion and media coverage are limited.

Impacted Technologies

VendorProductVersion(s)CPE
< 111.0.5563.64CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
>= 111.0.5563.64, < 111.0.5563.64CPE match
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
0.54%
Probability of exploitation in next 30 days
EPSS Percentile
42.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0054 is in the 44th 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: 111.0.1661.41
microsoftpatch availablevia msrc
Product: Microsoft Edge (Chromium-based) Extended StableFixed in: 110.0.1587.69

Vendor Advisories (1)

microsoft2023-Mar/CVE-2023-1218

Chromium: CVE-2023-1218 Use after free in WebRTC

Mar 14, 2023

References

chromereleases.googleblog.com / 2023/03/stable-channel-update-for-desktop.html
Release Notes
crbug.com / 1413628
Permissions Required