CVE-2026-96066
A NVD · · CVE-2026-96066
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
- 7.8
- EPSS
- 0%
Key insight
Pure CVE report without indications of active exploitation, specific attackers, or additional TTPs.
Description
CVE-2026-96066 describes a stack-based buffer overflow in the Windows Local Security Authority Subsystem Service (LSASS). An attacker who already has local access can exploit the vulnerability to elevate privileges on the affected system. Windows systems with a vulnerable LSASS are affected; the report does not provide information on active exploitation, KEV inclusion, or a public PoC. The vulnerability requires local access and is not described as remotely exploitable.
Risk score
- cvss base
- 78.00
- kev bonus
- 0.00
- epss bonus
- 0.00
- poc bonus
- 0.00
- raw before weight
- 78.00
- 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 | An authorized attacker exploits a stack-based buffer overflow in Windows LSASS to execute arbitrary code in the context of the Local Security Authority Subsystem Service, thereby elevating privileges locally to SYSTEM. | high | llm |