CVE-2026-85899 json
Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
published 2026-10-29 11 d ago modified 2026-11-03 5 d ago also EUVD-2026-112936
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 51%
- public exploits
- 0
- none known
Summary
Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to elevate privileges over a network.
Patch / fix
- Microsoft Microsoft Edge (Chromium-based) 155.0.4283.45
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 10 d ago
Exploit prediction
0.64% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:P/RL:O/RC:C |
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
Affected products
- Microsoft Microsoft Edge (Chromium-based)
Classification
- Weakness
-
- CWE-416 Use After Free
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2026-85899
vendor-advisory, patch
Sources
- CVE List CVE-2026-85899
- NVD CVE-2026-85899
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