CVE-2025-59246Network attack vector

Unauthenticated privilege elevation through undisclosed function

Published Oct 9, 2025 · Updated Oct 9, 2025

Missing authentication in Microsoft Entra allows remote attackers to elevate privileges through an unspecified hosted-service function. Microsoft has not disclosed the affected Entra component, critical function, request path, or the operation performed without authentication. The issue is reachable over the network without prior privileges or user interaction, but the exact elevated role and tenant boundary are not public.

CVSS severity9.8
Critical
EPSS probability7.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Microsoft Entra allows remote attackers to elevate privileges through an unspecified hosted-service function. Microsoft has not disclosed the affected Entra component, critical function, request path, or the operation performed without authentication. The issue is reachable over the network without prior privileges or user interaction, but the exact elevated role and tenant boundary are not public.

The record

CVE
CVE-2025-59246
Published
Oct 9, 2025
Updated
Oct 9, 2025
Vendor
Microsoft
Product
Microsoft Entra
Classifications
CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 9, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=N/A

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft Entraversion=N/A

Published CVSS scores

9.8Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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