CVE-2024-35265

Local privilege escalation via TOCTOU race

Published Jun 11, 2024 · Updated Aug 10, 2026

A TOCTOU race in Microsoft Windows Perception Service allows local users with low privileges to create or delete files as LOCAL SERVICE. Microsoft identifies the weakness as a time-of-check time-of-use race but has not disclosed the raced resource or the service operations involved. Exploitation requires local low-privilege access and winning a high-complexity race; success alters files with LOCAL SERVICE rights.

CVSS severity7.0
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A TOCTOU race in Microsoft Windows Perception Service allows local users with low privileges to create or delete files as LOCAL SERVICE. Microsoft identifies the weakness as a time-of-check time-of-use race but has not disclosed the raced resource or the service operations involved. Exploitation requires local low-privilege access and winning a high-complexity race; success alters files with LOCAL SERVICE rights.

The record

CVE
CVE-2024-35265
Published
Jun 11, 2024
Updated
Aug 10, 2026
Vendor
Microsoft
Product
Windows Server 2019
Classifications
CWE-367, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=10.0.17763.0 <10.0.17763.5936

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.5936
Microsoft · Windows 11 version 21H2version=10.0.22000.0 <10.0.22000.3019
Microsoft · Windows 10 Version 21H2version=10.0.19044.0 <10.0.19044.4529
Microsoft · Windows 10 Version 22H2version=10.0.19045.0 <10.0.19045.4529
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.5936
Microsoft · Windows 11 Version 23H2version=10.0.22631.0 <10.0.22631.3737
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.3737
Microsoft · Windows 10 Version 1809version=10.0.0 <10.0.17763.5936; version=10.0.17763.0 <10.0.17763.5936

Published CVSS scores

7.0Microsoft CorporationCVSS:3.1/AV:L/AC:H/PR:L/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 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-367Time-of-check Time-of-use (TOCTOU) Race Condition
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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