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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.

PUBLISHED Reserved 2026-07-12 | Published 2026-07-13 | Updated 2026-07-13 | Assigner VulDB




HIGH: 7.3CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
HIGH: 7.0CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
HIGH: 7.0CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
6.0AV:L/AC:H/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Uncontrolled Search Path

Untrusted Search Path

Product status

18.1.30242.301
affected

Timeline

2026-07-12:Advisory disclosed
2026-07-12:VulDB entry created
2026-07-12:VulDB entry last update

Credits

ukpkmkkkkk (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/377844 (VDB-377844 | Tencent PC Manager QMUDisk Driver qmudisk64.sys uncontrolled search path) vdb-entry

vuldb.com/vuln/377844/cti (VDB-377844 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-15515 (CVE-2026-15515 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/848643 (Submit #848643 | Tencent PC Manager 18,1,30242,301 Improper Access Controls) third-party-advisory

github.com/subsubsub1231/qmukiller exploit

cve.org (CVE-2026-15515)

nvd.nist.gov (CVE-2026-15515)

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