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CVE-2025-4609

35
FAUCET Score

CVE-2025-4609 is a critical vulnerability affecting Google Chrome on Windows, specifically versions prior to 136.0.7103.113. This flaw, stemming from an incorrect handle in Mojo, allows a remote attacker to potentially achieve a sandbox escape via a malicious file. With a CVSS score of 9.6 (CRITICAL), the vulnerability is easily exploitable over the network with low attack complexity, enabling high impact on confidentiality, integrity, and availability. While not yet added to CISA's KEV catalog, there is significant community discussion and media coverage, including reports of a security researcher receiving a substantial bounty for its discovery, indicating active interest and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 136.0.7103.113CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
>= 136.0.7103.113, < 136.0.7103.113CPE match
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.6CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 35th percentile among its peer group of 836 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 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: 136.0.3240.76

Vendor Advisories (1)

microsoft2025-May/CVE-2025-4609

Chromium: CVE-2025-4609 Incorrect handle provided in unspecified circumstances in Mojo

May 13, 2025

References

chromereleases.googleblog.com / 2025/05/stable-channel-update-for-desktop_14.html
Release Notes
issues.chromium.org / issues/412578726
ExploitIssue Tracking