PT-2026-58339 · Microsoft · Active Directory Federation Services+2

CVE-2026-50355 · Published 2026-07-14 · Updated 2026-07-24

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 occurs when a program writes more data to a buffer located on the stack than the buffer is allocated to hold. This issue allows an unauthorized attacker to cause a denial of service over a network.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

BDU:2026-10354

BDU:2026-10572

CVE-2026-50355

Affected Products

.Net Framework

Active Directory Federation Services

Windows

References · 8

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50355 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-50355 · Security Note
• https://bdu.fstec.ru/vul/2026-10354 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-50355 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50355 · Security Note
• https://bdu.fstec.ru/vul/2026-10572 · Security Note
• https://t.me/cveNotify/220399 · Telegram Post
• https://t.me/cveNotify/208323 · Telegram Post