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CVE-2026-4445

27
FAUCET Score

CVE-2026-4445 is a high-severity use-after-free vulnerability in WebRTC affecting Google Chrome prior to version 146.0.7680.153 across Apple, Google, Linux, and Microsoft platforms. Rated 8.8 CVSS (High), it allows a remote attacker to exploit heap corruption with low attack complexity and user interaction, leading to high impact on confidentiality, integrity, and availability. While not actively exploited (KEV: No) and lacking public exploit code, the vulnerability has received some community attention and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 146.0.7680.153, < 146.0.7680.153CPE match
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
< 146.0.7680.153CPE 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
0.25%
Probability of exploitation in next 30 days
EPSS Percentile
16.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0025 is in the 18th 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 (1)

microsoftpatch availablevia msrc
Product: Microsoft Edge (Chromium-based)Fixed in: 146.0.3856.72

Vendor Advisories (1)

microsoft2026-Mar/CVE-2026-4445

Chromium: CVE-2026-4445 Use after free in WebRTC

Mar 10, 2026

References

chromereleases.googleblog.com / 2026/03/stable-channel-update-for-desktop_18.html
Release NotesVendor Advisory
issues.chromium.org / issues/486421953
Issue TrackingPermissions Required