CVE-2025-29834: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Analyzed
Published 12-04-2025Last modified 10-08-2026
Vulnerability summary
CVE-2025-29834 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in microsoft edge_chromium. EPSS estimates a 0.64% chance of exploitation in the next 30 days, higher than 50.1% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.64%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 12-04-2025PublishedVulnerability first disclosed.
- 10-08-2026Last modifiedVulnerability information updated.
Description
Out-of-bounds read in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.64%
Chance of exploitation in the next 30 days
Percentile
50%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.63% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft2 products
- edge_chromium< 134.0.3124.93
- microsoft edge (chromium-based)≥ 1.0.0.0, < 134.0.3124.93
1 vendor · 2 products
