Linked CVE review

Deploy Microsoft Windows security update KB5070881

Linked CVEs: 1
Confirmed exploited: 1
PoC or lab evidence: 1
Maximum CVSS: 9.8

Evidence is kept separate

Confirmed exploitation, public exploit material, EPSS probability and CVSS severity answer different questions. “No confirmation recorded” means the checked sources do not currently confirm exploitation. It is not proof that exploitation has not occurred.

1 of 1 linked CVEs shown

Confirmed exploitedCVSS above 9.0

CVE and description	Severity	Exploit reality	Forecast and access	Remediation
CVE-2025-59287 Immediate evidence Microsoft Windows Server Update Service (WSUS) Deserialization of Untrusted Data Vulnerability Microsoft Windows Server Update Service (WSUS) contains a deserialization of untrusted data vulnerability that allows for remote code execution.	9.8 · CVSS 3.1 · CriticalSource: CNA	Confirmed in the wildCISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2025-10-24.Public exploit referencedA structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.	EPSS: 100.0% · 100.0th percentileForecast date: 2026-10-08NETWORK · LOW complexity · NONE privileges · NONE user interaction	Patch nowCISA confirms exploitation in the wild and lists 2025-11-14 as the remediation due date.Patch available. Patch KB5070882 from Microsoft includes a fix for this vulnerability and is available for download directly from WSUS. Reboot may be required to complete patch update. Customers should contact and work with [Global Customer Support](https://pasupport.se.com/home) to verify update has been completed.