CVE-2025-6556
MEDIUMCVSS 5.4/10EPSS 0.16%
Last modified
CVE-2025-6556 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Insufficient policy enforcement in Loader in Google Chrome prior to 138.0.7204.49 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Low). EPSS estimates a 0.16% chance of exploitation in the next 30 days.
Description
Insufficient policy enforcement in Loader in Google Chrome prior to 138.0.7204.49 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Low)
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Chrome | < 138.0.7204.49 |
References
- https://issues.chromium.org/issues/40062462Issue Tracking, Permissions Required
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-6556?
Insufficient policy enforcement in Loader in Google Chrome prior to 138.0.7204.49 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Low)
How severe is CVE-2025-6556?
CVE-2025-6556 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.
How do I fix CVE-2025-6556?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2025
- CVE-2025-65540Multiple Cross-Site Scripting (XSS) vulnerabilities exist in…6.1
- CVE-2025-65548NUT-14 allows cashu tokens to be created with a preimage has…9.1
- CVE-2025-6555Use after free in Animation in Google Chrome prior to 138.0.…5.4
- CVE-2025-65552D3D Wi-Fi Home Security System ZX-G12 v2.1.1 is vulnerable t…9.8
- CVE-2025-65553D3D Wi-Fi Home Security System ZX-G12 v2.1.17 is susceptible…6.5
- CVE-2025-65559An issue was discovered in Open5GS 2.7.5-49-g465e90f, when p…7.5
- CVE-2025-65561An issue was discovered in function LocalNode.Sess in free5G…7.5
- CVE-2025-65562The free5GC UPF suffers from a lack of bounds checking on th…7.5
- CVE-2025-65563A denial-of-service vulnerability exists in the omec-project…7.5
- CVE-2025-65564A denial-of-service vulnerability exists in the omec-upf (up…7.5
- CVE-2025-65565A denial-of-service vulnerability exists in the omec-project…7.5
- CVE-2025-65566A denial-of-service vulnerability exists in the omec-project…7.5
Are you affected by CVE-2025-6556?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST