CVE & CISA-KEV Catalog

CVE-2026-50324

HIGH
5.9
CVSS v3
NVD

Description

Loop with unreachable exit condition ('infinite loop') in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.

CWE-835

How to fix

Remediation Available
Windows 10 Version 1607Windows
Install:KB5099535Microsoft
Windows 10 Version 1809Windows
Install:KB5099538Microsoft
Windows Server 2012 R2Windows
Install:KB5099444Microsoft
Windows Server 2012 R2 (Server Core installation)Windows
Install:KB5099444Microsoft
Windows Server 2016Windows
Install:KB5099535Microsoft
Windows Server 2016 (Server Core installation)Windows
Install:KB5099535Microsoft
Windows Server 2019Windows
Install:KB5099538Microsoft
Windows Server 2019 (Server Core installation)Windows
Install:KB5099538Microsoft
Windows Server 2022Windows
Install:KB5099540Microsoft
Windows Server 2025Windows
Install:KB5099536Microsoft
Windows Server 2025 (Server Core installation)Windows
Install:KB5099536Microsoft

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

Exploit Intelligence

0.78%probability of exploitation in 30 days
53rdpercentile

Moderate risk: more likely to be exploited than 53% of all known CVEs.

References

Related Vulnerabilities

Other CWE-835 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2020-13935High7.587%-Fix
CVE-2020-36227High7.578%-Fix
CVE-2022-0778High7.573%-Fix
CVE-2024-20353High8.671%KEV-
CVE-2023-34966High7.562%-Fix
CVE-2019-14241High7.561%--

Common questions

How do I fix CVE-2026-50324?

Published advisories record a fix for 11 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2026-50324 being actively exploited?

Not that we know of. CVE-2026-50324 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.78% is the estimated probability that it will be exploited in the next 30 days. That is higher than 53% of all scored CVEs.

How severe is CVE-2026-50324?

CVE-2026-50324 has a CVSS v3 base score of 5.9, rated important. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-50324 affect?

Published advisories record a fix for Windows 10 Version 1607 (Windows), Windows 10 Version 1809 (Windows), Windows Server 2012 R2 (Windows), Windows Server 2012 R2 (Server Core installation) (Windows), and 7 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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CVE-2026-50324 severity badge

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-22.