CVE-2025-33045: AMI AptioV · Write-what-where Condition
Affects AMI AptioVSource CVE Database V5
Not known to be exploited · CVSS 8.2 High.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 9 Sep 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
- Immediate firmware updates: Organizations should prioritize obtaining and deploying firmware patches from AMI or their hardware vendors as soon as they become available. Since no patches are currently linked, close coordination with vendors is critical.
- Restrict local privileged access: Limit administrative and physical access to systems to trusted personnel only, employing strict access controls and monitoring to reduce the risk of local exploitation.
- Enable BIOS security features: Utilize BIOS-level protections such as Secure Boot, BIOS write protection, and password protection to reduce the attack surface.
- Implement hardware-based security: Use Trusted Platform Module (TPM) and hardware root of trust features to detect unauthorized BIOS modifications.
- Monitor for anomalous behavior: Deploy endpoint detection and response (EDR) solutions capable of detecting unusual firmware or boot-level activity.
- Conduct regular firmware integrity checks: Use cryptographic verification tools to ensure BIOS firmware has not been tampered with.
- Physical security: Enhance physical security controls in data centers and offices to prevent unauthorized physical access to devices.
- Incident response planning: Prepare for potential firmware compromise scenarios with clear procedures for recovery and forensic analysis.
Description
APTIOV contains vulnerabilities in the BIOS where a privileged user may cause “Write-what-where Condition” and “Exposure of Sensitive Information to an Unauthorized Actor” through local access. The successful exploitation of these vulnerabilities can lead to information disclosure, arbitrary data writing, and impact Confidentiality, Integrity, and Availability.