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Improper input validation in Windows Server Update Service allows an unauthorized attacker to execute code over a network.

High CVSS 8.1
CVECVE-2026-20856
First seen2026-07-31 19:16 UTC
Disclosed2026-01-13 18:16 UTC
Last updated2026-07-31 19:16 UTC
Channel statusauto

Summary

Improper input validation in Windows Server Update Service allows an unauthorized attacker to execute code over a network.

In-depth triage · Auto channel

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Affected products

  • :

Sources

  • NVD DATABASE

Original Links

Timeline

  1. nvd_ingest NVD