CVE-2025-29815: microsoft edge_chromium Use After Free
CVSS: 7.6v3.1HighAnalyzed
Published 04-04-2025Last modified 10-08-2026
Vulnerability summary
CVE-2025-29815 is a high (CVSS 7.6) Use After Free vulnerability in microsoft edge_chromium. EPSS estimates a 0.79% chance of exploitation in the next 30 days, higher than 55.7% of scored vulnerabilities.
CVSS score
7.6/10
010
High · v3.1 (CVE.org)EPSS score
0.79%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 04-04-2025PublishedVulnerability first disclosed.
- 10-08-2026Last modifiedVulnerability information updated.
Description
Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.6Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST7.6HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L
EPSS trend
Probability
0.79%
Chance of exploitation in the next 30 days
Percentile
56%
Versus all other CVEs
30-day change
+0.01 pp
From 0.78% on 21-09-2026
21-09-202621-10-2026
EPSS score0.79%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft2 products
- edge_chromium< 134.0.3124.66
- microsoft edge (chromium-based)≥ 1.0.0.0, < 134.0.3124.66
1 vendor · 2 products