A AegiFlow
HIGHCVSS 8.1

CVE-2026-20856

CVE-2026-20856 updated by NVD

Modified
2026-08-01
Sources
nvd

Summary

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

References

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.