What is the CVSS score of CVE-2025-6557?

CVE-2025-6557 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2025-6557?

Within 30 days: Identify affected systems running DevTools in Google Chrome on Windows and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Chrome CVE-2025-6557

Q: Which versions of Chrome are affected by CVE-2025-6557?

Organizations using DevTools in Google Chrome on Windows should be aware of moderate risk from CVE-2025-6557 rated CVSS 5.4. Exploitation could compromise the security of affected deployments.. A patch is available.

EUVD-2025-19071 MEDIUM

Improper Restriction of Rendered UI Layers or Frames (CWE-1021)

2025-06-24 chrome-cve-admin@google.com

XSS Windows RCE Chrome Google Microsoft Debian Ubuntu Suse

5.4

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-1021 OWASP Top 10:2025 A06:2025 - Insecure Design ASVS 5.0 V3 - Web Frontend Security Clickjacking prevention, X-Frame-Options
Impact	CVSS score of 5.4 (MEDIUM).

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 15, 2026

Insufficient data validation in DevTools in Google Chrome on Windows prior to 138.0.7204.49 allowed a remote attacker who convinced a user to engage in specific UI gestures to execute arbitrary code via a crafted HTML page. (Chromium security severity: Low)

Earlier versions of this analysis (1)

v1 Mar 15, 2026 - 22:36 CVSS 5.4

RemediationAI

Monitor vendor advisories for patches. Apply mitigations such as network segmentation, access restrictions, and monitoring.

Affected VersionsENISA

Chrome 138.0.7204.49 <138.0.7204.49

Affected Packages

euvd chrome fix: 138.0.7204.49

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Improper Restriction of Rendered UI Layers or Frames (CWE-1021).

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.4 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Ubuntu MEDIUM

SUSE MEDIUM

Primary rating from NVD.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

CVE Published

Jun 24, 2025 - 20:15 nvd

MEDIUM 5.4

Executive ViewAI

Why It Matters

Organizations using DevTools in Google Chrome on Windows should be aware of moderate risk from CVE-2025-6557 rated CVSS 5.4. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low

Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score

0.1%

Top 79% exploitable

Data Quality

5 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS Vendor

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 0.1%

Patch available Yes

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Defer

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact

Low

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +27

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Cross-Site Scripting MEDIUM

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

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8.8 Oct 27

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8.8 Mar 29

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9.3 Jan 13

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9.3 Oct 10

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CVE-2014-8636 HIGH Act Now POC

7.5 Jan 14

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CVE-2013-0757 CRITICAL Emergency POC

9.3 Jan 13

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CVE-2014-1510 CRITICAL Emergency POC

9.8 Mar 19

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CVE-2015-5123 CRITICAL Emergency

9.8 Jul 14

Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13

Same weakness CWE-1021 – Improper Restriction of Rendered UI Layers or Frames

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6.1

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10.0

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4.3

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6.1

CVE-2014-2120 MEDIUM

6.1

CVE-2023-40000 HIGH POC

8.3

CVE-2024-52875 HIGH POC

8.8

Vendor StatusVendor

Ubuntu

Priority: Medium

chromium-browser

Release	Status	Version
jammy	not-affected	code not present
noble	not-affected	code not present
oracular	not-affected	code not present
plucky	not-affected	code not present
upstream	released	-

Debian

chromium

Release	Status	Fixed Version	Urgency
bullseye (security), bullseye	vulnerable	120.0.6099.224-1~deb11u1	-
bookworm	fixed	138.0.7204.49-1~deb12u1	-
bookworm (security)	fixed	146.0.7680.71-1~deb12u1	-
trixie	fixed	145.0.7632.159-1~deb13u1	-
trixie (security)	fixed	146.0.7680.71-1~deb13u1	-
forky	fixed	146.0.7680.71-1	-
sid	fixed	146.0.7680.80-1	-
bullseye	fixed	(unfixed)	end-of-life
(unstable)	fixed	138.0.7204.49-1	-

DSA-5952-1

SUSE

Severity: Medium

Product	Status
SUSE Package Hub 15 SP6	Fixed
openSUSE Leap 15.6	Fixed
openSUSE Tumbleweed	Fixed
SUSE Package Hub 15 SP6	Fixed
SUSE Package Hub 15 SP6	Fixed

References

Advisories & patches

ADVISORY https://chromereleases.googleblog.com/2025/06/stable-channel-update-for-desktop_24.html ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2025-6557 ADVISORY https://security-tracker.debian.org/tracker/dsa-5952-1 REF https://issues.chromium.org/issues/406631048

Search Externally

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