CVE-2024-28904

Local privilege escalation across a security boundary

Published Apr 9, 2024 · Updated May 3, 2025

Privilege escalation in Microsoft Brokering File System in Windows Server 23H2 before 10.0.25398.830 allows local users to gain elevated privileges. Microsoft identifies improper privilege management but has not published the affected function, incorrect privilege operation, or attacker-controlled input. The flaw requires existing low-privileged local access; successful exploitation crosses a security boundary and compromises the host.

CVSS severity7.8
High
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Microsoft Brokering File System in Windows Server 23H2 before 10.0.25398.830 allows local users to gain elevated privileges. Microsoft identifies improper privilege management but has not published the affected function, incorrect privilege operation, or attacker-controlled input. The flaw requires existing low-privileged local access; successful exploitation crosses a security boundary and compromises the host.

The record

CVE
CVE-2024-28904
Published
Apr 9, 2024
Updated
May 3, 2025
Vendor
Microsoft
Product
Windows Server 2022, 23H2 Edition (Server Core installation)
Classifications
CWE-269, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 9, 2024CVE publishedPublication date reported by the CVE source.
  2. May 3, 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=10.0.25398.0 <10.0.25398.830

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)version=10.0.25398.0 <10.0.25398.830

Published CVSS scores

7.8Microsoft CorporationCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation

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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