CVE-2026-66313
MEDIUMCVSS 6.8/10EPSS 0.24%
Last modified
CVE-2026-66313 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tampering locally.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.
Description
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tampering locally.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Edge Chromium | < 151.0.4129.59 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-66313?
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tampering locally.
How severe is CVE-2026-66313?
CVE-2026-66313 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.
How do I fix CVE-2026-66313?
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
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Are you affected by CVE-2026-66313?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST