CVE-2026-15515 Tencent PC Manager QMUDisk Driver qmudisk64.sys uncontrolled search path
Local attackers can exploit an uncontrolled search path in the QMUDisk driver to execute arbitrary code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15515?
CVE-2026-15515 is a high-severity path traversal vulnerability in Tencent PC Manager, published on 13 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
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.
Which versions are affected by CVE-2026-15515?
How do I fix CVE-2026-15515?
No fix has been published for CVE-2026-15515 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-15515 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15515 exists.
Sources
Also known as GHSA-6pvh-5mc9-hm57.