CVE-2024-21944 json
Improper input validation for DIMM serial presence detect (SPD) metadata could allow an attacker with physical access, ring0 access on a sy…
published 2026-06-10 4 mo ago modified 2026-07-23 3 mo ago also EUVD-2024-55617
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 12%
- public exploits
- 0
- none known
Summary
Improper input validation for DIMM serial presence detect (SPD) metadata could allow an attacker with physical access, ring0 access on a system with a non-compliant DIMM, or control over the Root of Trust for BIOS update, to potentially overwrite guest memory resulting in loss of guest data integrity.
Patch / fix
- AMD AMD EPYC™ 7003 Series Processors Milan PI 1.0.0.D, SEV FW 1.55.22 (hex 1.37.16)
- AMD AMD EPYC™ 9004 Series Processor Genoa PI 1.0.0.D, SEV FW 1.55.38 (hex 1.37.26)
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N |
Affected products
- AMD AMD EPYC™ 7003 Series Processors
- AMD AMD EPYC™ 9004 Series Processor
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
Sources
- CVE List CVE-2024-21944
- NVD CVE-2024-21944
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.