CVE-2026-88245
A NVD · · CVE-2026-88245
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
The alert only provides the NVD description of the local privilege escalation and offers no indication of active exploitation, a PoC, or specific attacker TTPs.
Description
CVE-2026-88245 affects the Windows Brokering File System and is described as missing authentication for a critical function. An attacker with local privileges can thereby elevate privileges on the affected system. The vulnerability is documented as an NVD entry; no information on active exploitation, a public PoC, or inclusion in CISA KEV is provided. Windows systems with the corresponding component are affected; details on affected versions and CVSS can be found in the NVD description.
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 missing authentication for a critical function in Windows Brokering File System to elevate privileges locally. | high | llm |