PT-2026-58303 · Microsoft · Active Directory Federation Services+2

CVE-2026-50304 · Published 2026-07-14 · Updated 2026-07-15

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Active Directory Federation Services (affected versions not specified)

Description A stack-based buffer overflow exists in Active Directory Federation Services. This flaw allows an unauthorized attacker to cause a denial of service over a network, effectively disrupting the login process for the federation service.

Recommendations Apply the July patch to resolve this issue.

Fix

DoS

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

BDU:2026-10156

CVE-2026-50304

Affected Products

.Net Framework

Active Directory Federation Services

Windows

References · 6

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-50304 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50304 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-10156 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-50304 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50304 · Security Note
• https://twitter.com/windowsforum/status/2077258646166073451 · Twitter Post