EUVD-2026-72791
GHSA-r768-j77w-2vwm
Severity by source
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Local high-privilege required; AT:P maps to AC:H; BIOS-level execution constitutes scope change (S:C) cascading to entire system stack.
Primary rating from Vendor (AMI).
CVSS VectorVendor: AMI
Lifecycle Timeline
2DescriptionCVE.org
AMI APTIOV contains a vulnerability in BIOS where a privileged user may cause the “Incomplete List of Disallowed Inputs” by local access. Successful exploitation of this vulnerability may lead to arbitrary code execution and impact system Confidentiality, Integrity, and Availability.
AnalysisAI
Arbitrary code execution in AMI APTIOV BIOS firmware is achievable by a locally-present privileged user exploiting an incomplete input blocklist (CWE-184) in the BIOS implementation. The flaw affects systems running AMI's APTIOV UEFI/BIOS platform - licensed to a wide range of OEM server and workstation vendors - and successful exploitation compromises confidentiality, integrity, and availability at both the firmware and OS layers, with cascading impact on the entire system stack. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires: (1) local physical or OS-level access to the target system (CVSS AV:L - no remote vector); (2) high-privilege credentials on the system (CVSS PR:H - explicitly described as 'a privileged user' in the vendor advisory); and (3) specific attack conditions beyond privilege alone (CVSS 4.0 AT:P), the exact nature of which is not disclosed in available advisory text. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor-assigned CVSS 4.0 vector (AV:L/AC:L/AT:P/PR:H/UI:N, score 8.7) reflects a locally-exploitable, high-privilege-required flaw with specific attack conditions (AT:P) that must be met beyond privilege alone. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Consult the AMI security advisory AMI-SA-2026001 at https://go.ami.com/hubfs/Security%20Advisories/2026/AMI-SA-2026001.pdf for specific patched BIOS versions; no exact fix version was extractable from the available input data. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all servers and workstations to identify which systems use AMI APTIOV BIOS firmware by consulting system documentation, BIOS version information, and OEM compatibility matrices provided by your hardware vendors. …
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Same weakness CWE-184 – Incomplete List of Disallowed Inputs
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External POC / Exploit Code
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