Microsoft Defender for Identity Spoofing Vulnerability
Priority LOW 30CWE-287Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.
Summary
Improper authentication in Microsoft Defender for Identity allows an unauthorized attacker to perform spoofing over an adjacent network.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00739 54th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Spoofing
- Exploited
- No
- Publicly disclosed
- Yes
- Exploitability
- Exploitation Unlikely
| Product | Status | Plan or fix |
|---|---|---|
| 1 | Affected | No update listed |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-26685
- 2026-10-03 Alias added: GHSA-22fv-h3f5-g95w
References
Sources
- CVE-2025-26685 · CVE Program
- CVE-2025-26685 · NVD
- FIRST EPSS
- GHSA-22fv-h3f5-g95w · GitHub Advisory Database · CC BY 4.0
- CVE-2025-26685 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences