CVE-2026-85921
A NVD · · CVE-2026-85921
Admiralty grading (A–F · 1–6)
Source reliability
- A Completely reliable
- B Usually reliable
- C Fairly reliable
- D Not usually reliable
- E Unreliable
- F Cannot be judged
Information credibility
- 1 Confirmed
- 2 Probably true
- 3 Possibly true
- 4 Doubtful
- 5 Improbable
- 6 Cannot be judged
NATO Admiralty (AJP-2.1) grades confidence, independent of the risk score. Cross-source corroboration isn't tracked for non-CVE news, so single-source items are capped at a lower credibility number; a low number does not imply low quality.
Key metrics
- CVSS
- 8.2
- EPSS
- 0%
Key insight
The report provides no information beyond the plain CVE description; there is no indication of active exploitation, a PoC, or threat actors.
Description
CVE-2026-85921 describes a double free in Windows Secure Kernel Mode. An authorized local actor can exploit the vulnerability to elevate privileges on an affected system. Windows systems with Secure Kernel Mode are affected, typically current Windows client and server versions. The NVD entry names neither active exploitation nor a public exploit or attack details. The report contains no further information on patch status or exploitation.
Risk score
- cvss base
- 82.00
- kev bonus
- 0.00
- epss bonus
- 0.00
- poc bonus
- 0.00
- raw before weight
- 82.00
- industry weight
- 1.21
- freshness factor
- 1.00
- exploitability factor
- 0.75
- days old
- 0.00
- vendor mismatch penalty
- 0.00
Path: operational
MITRE ATT&CK mapping
1 TTPProcedure details
| Technique | Tactic | Procedure | Conf. | Source |
|---|---|---|---|---|
| T1068 Exploitation for Privilege Escalation | Privilege Escalation | Exploits a double free vulnerability in Windows Secure Kernel Mode (CVE-2026-85921) to elevate privileges locally from an authorized user to SYSTEM. | high | llm |