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TI-2026-15816 Aliases CVE-2026-19382GHSA-9q7p-3ffm-5vvp

Almico Speedfan MSR Index speedfan.sys KiSystemCall64 memory leak

Priority MEDIUM 54CWE-401Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-401.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00168 6th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AlmicoSpeedfan4.52—No fix listedCNA
  • Speedfan VendorAlmico Affected 4.52 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:almico:speedfan:*:*:*:*:*:*:*:*——Almico
  • cpe:2.3:a:almico:speedfan:*:*:*:*:*:*:*:* Versions — — ·Almico

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-19382
  2. 2026-10-03 Alias added: GHSA-9q7p-3ffm-5vvp

References

Exploit 1

  • TI-2020-17122 There is a local privilege escalation vulnerability in Alfredo Milani Comparetti SpeedFan… CVSS 3.1HIGH 7.8
  • TI-2007-05414 Speedfan.sys in Alfredo Milani Comparetti SpeedFan 4.33, when used on Microsoft Windows… CVSS 2.0HIGH 7.2
  • TI-2007-05415 Speedfan.sys in Alfredo Milani Comparetti SpeedFan 4.33, when used on Microsoft Windows… CVSS 2.0MEDIUM 4.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences