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CVE-2024-33659

BiosGuard Buffer Overflow and TOCTOU Vulnerability

Medium5.7EPSS 0.16%
Published
Updated
Reserved
Assigned by
AMI

Description

AMI APTIOV contains a vulnerability in BIOS where an attacker may cause an Improper Input Validation by a local attacker. Successful exploitation of these vulnerabilities may lead to overwriting arbitrary memory and execute arbitrary code at SMM level, also impacting Confidentiality, Integrity, and Availability.

Timeline

  1. ID reserved

    By AMI

  2. · 10 months later

    Published

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2024-33659, by who scored it
Scored byCVSSScoreVector
AMICNA (assigner)4.0Medium5.7CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:L/VI:H/VA:H/SC:L/SI:L/SA:L
NVDNVD · Analyzed4.0Medium5.7CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:L/VI:H/VA:H/SC:L/SI:L/SA:L/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
EPSS (exploitation in 30 days)
0.16% · top 95% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.7.

Weakness

Affected products

  • AMI · AptioV

    • affected BKS_5.0 – ≤ BKS_5.38

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .