PT-2026-42849 · Microsoft · Entra Id

Sridhar Periyasamy + 1 · Published 2026-05-21 · Updated 2026-05-27 · CVE-2026-42901

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Microsoft Entra ID (affected versions not specified)

Description An origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.

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

LPE

Origin Validation Error

Weakness Enumeration

CWE-346

Related Identifiers

BDU:2026-07699

CVE-2026-42901

Affected Products

Entra Id

References · 10

• https://bdu.fstec.ru/vul/2026-07699 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42901 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-42901 · Security Note
• https://twitter.com/DFIR_Lab/status/2059443764268011993 · Twitter Post
• https://twitter.com/vuldb/status/2058182971597914154 · Twitter Post
• https://t.me/CVEtracker/54694 · Telegram Post
• https://t.me/cveNotify/164824 · Telegram Post
• https://twitter.com/YourAnon_irc/status/2058083641620677015 · Twitter Post
• https://twitter.com/CVEnew/status/2058155758446166427 · Twitter Post
• https://twitter.com/vuldb/status/2058073837548507184 · Twitter Post