# CVE-2025-55241 — Microsoft Entra

> As of 2026-02-26, CVE-2025-55241 is a CRITICAL-severity vulnerability in Microsoft Entra, CVSS v3.1 10, EPSS 1.5% (72.0th percentile). Threadlinqs Intelligence links 2 tracked threat campaigns to CVE-2025-55241, most recently “CVE-2025-55241: Microsoft Entra ID Actor Token Flaw Allowed Cross-Tenant Global Admin Impersonation”.

**Last updated:** 2026-02-26

## What is CVE-2025-55241?

Azure Entra ID Elevation of Privilege Vulnerability

The record classifies CVE-2025-55241 under weakness class [CWE-287](https://cwe.mitre.org/data/definitions/287.html). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 382 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 10 — CRITICAL (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C`)
- **EPSS (FIRST):** 1.5% probability of exploitation in the next 30 days, higher than 72.0% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 9.9/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2025-09-04, last modified 2026-02-26

## Is CVE-2025-55241 being exploited?

Weaponised exploit code for CVE-2025-55241 is publicly available. 1 public proof-of-concept repository is tracked for this identifier.

- [trickest/cve](https://github.com/trickest/cve/blob/main/2025/CVE-2025-55241.md) (trickest)

## Affected products and versions

- **Microsoft**: Entra

## How to fix CVE-2025-55241

Vendor advisory: [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55241](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55241). Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

## Threat activity tracking CVE-2025-55241

2 tracked threats in the Threadlinqs corpus reference CVE-2025-55241, either in the campaign’s CVE list or as an indicator on the campaign record.

- [CVE-2025-55241: Microsoft Entra ID Actor Token Flaw Allowed Cross-Tenant Global Admin Impersonation](https://intel.threadlinqs.com/threat/TL-2026-1986) — CRITICAL · 2026-08-11
- [BeyondTrust Microsoft Vulnerabilities Report 2026: Critical Flaws More Than Double as Elevation of Privilege Dominates (CVE-2025-55241, CVE-2025-62557, CVE-2025-62554)](https://intel.threadlinqs.com/threat/TL-2026-1060) — HIGH · 2026-07-02

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-07-04. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [msrc.microsoft.com — vendor advisory](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55241)

Canonical: https://intel.threadlinqs.com/cve/CVE-2025-55241
Full detection coverage and IOCs for threats exploiting CVE-2025-55241 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp