CVE-2026-85370
7.0HighPublished 13 Oct 2026 · NVD status: Awaiting Analysis · AI triage by gemini-3.8-flash
7.0High
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
- Impact
- Full C/I/A compromise
- Weakness
- CWE-416
Impact
A local attacker with an existing account can elevate privileges to SYSTEM. They need local shell or system access first.
Root cause
A use-after-free condition exists in the WebDAV service implementation.
Affected systems
Versions not listed — check the vendor advisory.
CVSS v3.1 · CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Fix & remediation
Install the Microsoft security update for this advisory when available; as an interim workaround, stop and disable the WebClient service.
shell
$ Stop-Service -Name WebClient -Force; Set-Service -Name WebClient -StartupType DisabledAI-suggested. Run it in staging first and check it against the vendor advisory. Why?
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NVD description
Use after free in WebDAV allows an authorized attacker to elevate privileges locally.