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Vulnerability record · public intelligence
CVE-2025-59287
CRITICALCISA KEV
Windows Server Update Service (WSUS) Remote Code Execution Vulnerability
Published Oct 14, 2025 · Updated Oct 1, 2026
Severity · CVSSCRITICAL · 9.8
Known exploitationCISA KEV listed
EPSS / likelihood99.98%
QFinch risk score100 / 100
Original summary
Normalized public record · Updated Oct 1, 2026
Windows Server Update Service (WSUS) Remote Code Execution Vulnerability
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
CVEKEVNVDEPSSMETASPLOIT
- SSVC priority
- IMMEDIATE
- Confidence
- 100%
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- Windows Server Update Service (WSUS) Remote Code Execution Vulnerability ↗
- hawktrace.com ↗
- www.bleepingcomputer.com ↗
- www.vicarius.io ↗
- www.vicarius.io ↗
- gist.github.com ↗
- CISA advisory ↗
Record history
Published Oct 14, 2025 · Last refreshed Oct 1, 2026