CVE-2026-15515: Uncontrolled Search Path in Tencent PC Manager
A security vulnerability has been detected in Tencent PC Manager 18.1.30242.301. This issue affects some unknown processing in the library qmudisk64.sys of the component QMUDisk Driver. The manipulation leads to uncontrolled search path. The attack must be carried out locally. The attack is considered to have high complexity. The exploitability is assessed as difficult. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
AI Analysis
Technical Summary
This vulnerability affects Tencent PC Manager 18.1.30242.301 and is caused by an uncontrolled search path in the qmudisk64.sys library of the QMUDisk Driver component. The flaw allows a local attacker with limited privileges to potentially influence the search path used by the driver, which could lead to unintended code execution or privilege escalation under certain conditions. The attack complexity is high, and exploitation is considered difficult. The vulnerability has been publicly disclosed, but no vendor response or patch has been provided to date.
Potential Impact
The vulnerability could allow a local attacker to manipulate the search path used by the QMUDisk Driver, potentially leading to execution of malicious code or unauthorized actions with elevated privileges. However, exploitation requires local access and is complex, reducing the likelihood of widespread exploitation. No known exploits are currently observed in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or vendor response is available, users should limit local access to trusted users only and monitor for updates from Tencent regarding patches or mitigations.
CVE-2026-15515: Uncontrolled Search Path in Tencent PC Manager
Description
A security vulnerability has been detected in Tencent PC Manager 18.1.30242.301. This issue affects some unknown processing in the library qmudisk64.sys of the component QMUDisk Driver. The manipulation leads to uncontrolled search path. The attack must be carried out locally. The attack is considered to have high complexity. The exploitability is assessed as difficult. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS v4.0
Score 7.3high
Affected software
cpe:2.3:a:tencent:pc_manager:*:*:*:*:*:*:*:*AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Tencent PC Manager 18.1.30242.301 and is caused by an uncontrolled search path in the qmudisk64.sys library of the QMUDisk Driver component. The flaw allows a local attacker with limited privileges to potentially influence the search path used by the driver, which could lead to unintended code execution or privilege escalation under certain conditions. The attack complexity is high, and exploitation is considered difficult. The vulnerability has been publicly disclosed, but no vendor response or patch has been provided to date.
Potential Impact
The vulnerability could allow a local attacker to manipulate the search path used by the QMUDisk Driver, potentially leading to execution of malicious code or unauthorized actions with elevated privileges. However, exploitation requires local access and is complex, reducing the likelihood of widespread exploitation. No known exploits are currently observed in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or vendor response is available, users should limit local access to trusted users only and monitor for updates from Tencent regarding patches or mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-07-12T11:02:05.805Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a54324268715ace43c2daba
Added to database: 07/13/2026, 00:33:06 UTC
Last enriched: 07/20/2026, 18:34:50 UTC
Last updated: 08/26/2026, 22:52:08 UTC
Views: 164
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