CVE-2025-58771 PUBLISHED

UEFI OOB Write and Buffer Overflow Vulnerabilities

Assigner: AMI
Reserved: 04.09.2025 Published: 13.10.2026 Updated: 13.10.2026

AMI APTIOV contains vulnerabilities in BIOS where users may cause “Integer Overflow or Wraparound” by local access. Successful exploitation of this vulnerability could lead to buffer overflows, memory corruption, and arbitrary code execution, and also impact Confidentiality, Integrity, and Availability.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
CVSS Score: 7.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	High	Confidentiality	Low
Attack Complexity	High	Integrity	High	Integrity	Low
Attack Requirements	None	Availability	High	Availability	Low
Privileges Required	High
User Interaction	None

CVSS 4.0

Product Status

Vendor	AMI
Product	AptioV
Versions	Default: unaffected affected from AptioV_5.0 to AptioV_5.044 (excl.)

References

https://go.ami.com/hubfs/Security%20Advisories/2026/AMI-SA-2026002.pdf

Problem Types

CWE-190 Integer overflow or wraparound CWE