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CVE-2026-14040

37
FAUCET Score

Use after free in BrowserTag in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security severity: Low)

First published: Jun 30, 2026Last modified: Jun 30, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 150.0.7871.47CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
>= 150.0.7871.47, < 150.0.7871.47CPE 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
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
12.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 12th 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

No media coverage found for this CVE.

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)
googlevendor investigatingvia chrome_releases
View patch

Vendor Advisories (2)

microsoft2026-Jul/CVE-2026-14040

Chromium: CVE-2026-14040 Use after free in BrowserTag

Jul 2, 2026
googlegoogle:chrome-a8ca1bcd2fe870afCRITICAL

Stable Channel Update for Desktop

Jun 30, 2026

References

chromereleases.googleblog.com / 2026/06/stable-channel-update-for-desktop_0175352312.html
Release Notes
issues.chromium.org / issues/497488593
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