CVE-2023-35379

Limited SYSTEM privileges via improper link resolution

Published Aug 8, 2023 · Updated Aug 10, 2026

Link following in Microsoft RACEng on Windows Server 2008 R2 SP1 and Server Core allows local users to gain limited SYSTEM privileges. RACEng resolves an attacker-controlled filesystem link before privileged file access, redirecting that access; Microsoft has not disclosed the affected function or whether the operation reads or writes. Exploitation requires local low-privilege access and yields specific limited SYSTEM privileges rather than unrestricted SYSTEM authority.

CVSS severity7.8
High
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Link following in Microsoft RACEng on Windows Server 2008 R2 SP1 and Server Core allows local users to gain limited SYSTEM privileges. RACEng resolves an attacker-controlled filesystem link before privileged file access, redirecting that access; Microsoft has not disclosed the affected function or whether the operation reads or writes. Exploitation requires local low-privilege access and yields specific limited SYSTEM privileges rather than unrestricted SYSTEM authority.

The record

CVE
CVE-2023-35379
Published
Aug 8, 2023
Updated
Aug 10, 2026
Vendor
Microsoft
Product
Windows Server 2008 R2 Service Pack 1
Classifications
CWE-59, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 8, 2023CVE 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

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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=6.1.7601.0 <6.1.7601.26664

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Windows Server 2008 R2 Service Pack 1version=6.1.7601.0 <6.1.7601.26664
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)version=6.1.7601.0 <6.1.7601.26664

Published CVSS scores

7.8MicrosoftCVSS:3.1/AV:L/AC:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-59Improper Link Resolution Before File Access ('Link Following')
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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