Vulnerability · Published Jul 13, 2026 · Assigned by VulDB
CVE-2026-15515Tencent PC Manager QMUDisk Driver qmudisk64.sys uncontrolled search path
High 7.0
In plain English
A high-severity uncontrolled search path in PC Manager from Tencent. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Tencent | PC Manager | 18.1.30242.301 |
Weakness: CWE-427, CWE-426 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
References
- VDB-377844 | Tencent PC Manager QMUDisk Driver qmudisk64.sys uncontrolled search path vdb-entry
- VDB-377844 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-15515 | CVE Analysis and Report third-party-advisory
- Submit #848643 | Tencent PC Manager 18,1,30242,301 Improper Access Controls third-party-advisory
- https://github.com/subsubsub1231/qmukiller exploit