CVE-2021-26330
Published: 16 November 2021
Summary
CVE-2021-26330 is a medium-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Amd Epyc 7003 Firmware. Its CVSS base score is 5.5 (Medium).
Operationally, ranked at the 30.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-13136
Vulnerability details
AMD System Management Unit (SMU) may experience a heap-based overflow which may result in a loss of resources.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.