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High severity7.4NVD Advisory· Published Oct 13, 2026· Updated Oct 13, 2026

CVE-2026-83511

CVE-2026-83511

Description

Weak authentication in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.

Affected products

1

Microsoft/Active Directory Federation Servicesllm-fuzzy

Patches

Vulnerability mechanics

References

1

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83511nvd

News mentions

0

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CVE-2026-83511 · High · VYPR