CVE-2026-85321

Allocation of resources without limits or throttling in Active Directory Federation Services (AD…

Risk score: 63/100
CVSS: 7.5 v3.1
Exploit chance (30 days): 1.1%
Published: 13 Oct 2026

Open in the live forecast Today's forecast

What to know

What it is: Allocation of resources without limits or throttling in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
Affected: See advisory
Fix: Apply the vendor's security update; see the linked advisory.
Exploitation: No known exploitation

Why it is Amber

CVSS 7.5 high
Remotely exploitable without logging in

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85321

Original description

Allocation of resources without limits or throttling in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.

Last activity 13 Oct 2026. Patch Forecast updates every hour.