TI-2023-20667 Aliases CVE-2023-39535 GHSA-r22x-56pw-w758

Improper input validation in BIOS

LOW 35CWE-20Published 2023-11-14 · Updated 2024-08-29

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

AMI AptioV contains a vulnerability in BIOS where an Attacker may use an improper input validation via the local network. A successful exploit of this vulnerability may lead to a loss of confidentiality, integrity and availability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00206 10th 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	all versions	—	No fix listed	CNA

AptioV VendorAMI Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:ami:aptio_v::::::::	all versions	Vulnerable	AMI

cpe:2.3:o:ami:aptio_v:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·AMI

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-39535
2026-10-03 Alias added: GHSA-r22x-56pw-w758

References

Advisory 1

https://9443417.fs1.hubspotusercontent-na1.net/hubfs/9443417/Security%20Advisories/AMI-SA-2023008.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