TI-2024-22240 Aliases CVE-2024-33656 GHSA-fm2v-78x9-f367

Memory Leak in SmmComuptrace Module

LOW 35CWE-269Published 2024-08-21 · Updated 2024-08-21

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Privilege escalation
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-269.

Summary

The DXE module SmmComputrace contains a vulnerability that allows local attackers to leak stack or global memory. This could lead to privilege escalation, arbitrary code execution, and bypassing OS security mechanisms

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00162 5th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
AMI	AptioV	BKS_5.0 – 5.36	—	No fix listed	CNA

AptioV VendorAMI Affected BKS_5.0 – 5.36 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:ami:aptio_v::::::::	5.0 – 5.36	Vulnerable	AMI

cpe:2.3:o:ami:aptio_v:*:*:*:*:*:*:*:* Versions 5.0 – 5.36 Vulnerable ·AMI

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-33656
2026-10-03 Alias added: GHSA-fm2v-78x9-f367

References

Advisory 1

https://9443417.fs1.hubspotusercontent-na1.net/hubfs/9443417/Security%20Advisories/2024/AMI-SA-2024003.pdf

TI-2022-19108 The arbitrary write vulnerability in S3Resume2Pei leads to arbitrary code execution during PEI phase. CVSS 3.1HIGH 8.2
TI-2022-19103 Stack overflow vulnerability in SMI handler on SmmSmbiosElog. CVSS 3.1HIGH 8.8
TI-2022-19107 SMM memory corruption vulnerability in OverClockSmiHandler SMM driver CVSS 3.1HIGH 8.2
TI-2022-10117 Stack-based buffer overflow in AMI Aptio CVSS 3.1HIGH 8.2
TI-2024-28413 Runtime Service Access outside SMRAM CVSS 3.1HIGH 8.8
TI-2025-24038 Legacy Serial Redirection SMRAM Vulnerabilities CVSS 3.1HIGH 8.2

See all 29 →

Sources

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