RCE in Microsoft Edge Chromium
CVE-2025-59251
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.005 (40.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Microsoft Edge Chromium
- Microsoft Edge (Chromium-Based) — versions 1.0.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59251 (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-59251?
- CVE-2025-59251 is a high-severity vulnerability in Microsoft Edge Chromium, classified under Stack-based Buffer Overflow. CVSS score: 7.6/10. Published 2025-09-24.
- How severe is CVE-2025-59251?
- High severity. CVSS v3 base score is 7.6 out of 10.
- Is CVE-2025-59251 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.