CVE-2026-19382 Almico Speedfan MSR Index speedfan.sys KiSystemCall64 memory leak
A local attacker can exploit a memory leak in Speedfan's kernel driver to disclose sensitive memory contents.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19382?
CVE-2026-19382 is a medium-severity vulnerability in Almico Speedfan, published on 10 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A weakness has been identified in Almico Speedfan 4.52. This affects the function KiSystemCall64 in the library speedfan.sys of the component MSR Index Handler. Executing a manipulation can lead to memory leak. The attack can only be executed locally. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-19382?
How do I fix CVE-2026-19382?
No fix has been published for CVE-2026-19382 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-19382 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19382 exists.
Sources
Also known as GHSA-9q7p-3ffm-5vvp.