Integer overflow in AMI AptioV BIOS enables memory corruption
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.
Summary
AMI AptioV BIOS firmware from AptioV_5.0 before AptioV_5.044 contains an integer overflow (CWE-190). A local attacker with high privileges can trigger it, which leads to buffer overflows, memory corruption and arbitrary code execution, affecting confidentiality, integrity and availability.
Written with Claude Haiku 5.5 from the sources below · 2026-10-27
Description from the CNA
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.
Why it matters now
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
Remediation
AMI fixes this issue in AptioV_5.044, so affected AptioV firmware must be updated to AptioV_5.044 or later.
Written with Claude Haiku 5.5 from the sources below · 2026-10-27
- Fix · CNA AptioV (AMI) Fixed in AptioV_5.044
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
AMI AptioV AptioV_5.044
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2025-43908 Buffer overflow in AMI AptioV BIOS firmware allows local code executionPriority LOW 36
- TI-2025-43909 Out-of-bounds write in AMI AptioV BIOS allows code executionPriority LOW 32
Timeline
- 2026-10-13 Threatist record created from CVE-2025-58771
- 2026-10-13 Alias added: GHSA-fw3j-xvmr-h427
More AMI vulnerabilities
- TI-2024-36205 Redfish Authentication Bypass KEVCVSS 4.0CRITICAL 10.0
- 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-2022-19101 Arbitrary write vulnerability in SbPei module leads to arbitrary code execution during PEI phase. CVSS 3.1HIGH 7.2
Sources
- CVE-2025-58771 · CVE Program
- CVE-2025-58771 · NVD
- FIRST EPSS
- GHSA-fw3j-xvmr-h427 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences