CVE-2024-31771Public exploit

SYSTEM privilege escalation via junction-following quarantine restore

Published May 13, 2024 · Updated Feb 13, 2025

Incorrect privilege assignment in TotalAV 6.0.740 allows local users to gain SYSTEM privileges through a crafted quarantine restore. TotalAV's quarantine restore runs as SYSTEM and follows a user-controlled NTFS junction, writing a restored DLL into C:\Windows\System32. Exploitation requires local low-privileged access, a quarantined attacker-controlled DLL, creation of the junction, and a service that loads the planted DLL; successful execution grants SYSTEM control.

CVSS severity7.8
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect privilege assignment in TotalAV 6.0.740 allows local users to gain SYSTEM privileges through a crafted quarantine restore. TotalAV's quarantine restore runs as SYSTEM and follows a user-controlled NTFS junction, writing a restored DLL into C:\Windows\System32. Exploitation requires local low-privileged access, a quarantined attacker-controlled DLL, creation of the junction, and a service that loads the planted DLL; successful execution grants SYSTEM control.

The record

CVE
CVE-2024-31771
Published
May 13, 2024
Updated
Feb 13, 2025
Vendor
Total Security Limited
Product
TotalAV
Classifications
CWE-266, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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=6.0.740

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Total Security Limited · TotalAVversion=6.0.740

Published CVSS scores

7.8CISA-ADPCVSS: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.

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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 exploitPublished

Weakness, pattern, technique

CWE-266Incorrect Privilege Assignment
T1068Exploitation for Privilege Escalation

Public exploit references

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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