CVE-2026-90508
Chengdu Qilu Technology Ludashi Message Dispatch ProtectFilter64.sys MessageNotifyCallback authorization
- State
- Published
- Severity
- 4.6 Medium
- Published
- Sep 13, 2026
- Updated
- Sep 15, 2026
- Reserved
- Sep 12, 2026
Description
A security flaw has been discovered in Chengdu Qilu Technology Ludashi 6.1026.4715.714. Affected by this vulnerability is the function MessageNotifyCallback in the library ProtectFilter64.sys of the component Message Dispatch Handler. Performing a manipulation results in missing authorization. Attacking locally is a requirement. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.6 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 3.4 Low | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 3.4 Low | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 2.9 Low | AV:L/AC:L/Au:M/C:N/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
LudashiChengdu Qilu Technology |
|
References
- VDB-403096 | Chengdu Qilu Technology Ludashi Message Dispatch ProtectFilter64.sys MessageNotifyCallback authorizationvdb-entrytechnical-description
- VDB-403096 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-90508 | CVE Analysis and Reportthird-party-advisory
- Submit #895271 | Chengdu Qilu Technology Ludashi (鲁大师) 6.1026.4715.714 Missing Authenticationthird-party-advisory
- https://gist.github.com/lzty/fc5f336dca4c287ab4c22168b6dc8ec2exploit
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