criticalKEV
CVE-2025-59287
Windows Server Update Services unauthenticated deserialization -> RCE as SYSTEM (CVSS 9.8)
- Severity
- critical
- Affected product
- Microsoft WSUS
- Affected versions
- Microsoft WSUS all versions before the fix
- Detection basis
- Appliance fingerprint
- Shipped rule
- Microsoft WSUS: Windows Server Update Services unauthenticated deserialization -> RCE as SYSTEM (CVSS 9.8)
- CISA KEV
- Listed as a known exploited vulnerability
- EPSS
- 94% chance of exploitation in the next 30 days
- Added to NewScan
- 2026-08-06
- Detected by
- NewScan — free, self-hosted
How NewScan reports it
APPLIANCE FINGERPRINT
NewScan fingerprints the Microsoft WSUS appliance and reports this CVE when the detected version falls inside the affected range below.
References
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