Cyber Resilience

CVE-2021-26325

Medium

Published: 16 November 2021

Published
16 November 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0012 30.9th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-26325 is a medium-severity Improper Input Validation (CWE-20) vulnerability in Amd Epyc 7232P 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

Vulnerability details

Insufficient input validation in the SNP_GUEST_REQUEST command may lead to a potential data abort error and a denial of service.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

amd
epyc 7232p firmware
≤ romepi-sp3_1.0.0.c
amd
epyc 7763 firmware
≤ milanpi-sp3_1.0.0.4
amd
epyc 7713p firmware
≤ milanpi-sp3_1.0.0.4
amd
epyc 7713 firmware
≤ milanpi-sp3_1.0.0.4
amd
epyc 7663 firmware
≤ milanpi-sp3_1.0.0.4
amd
epyc 7643 firmware
≤ milanpi-sp3_1.0.0.4
amd
epyc 75f3 firmware
≤ milanpi-sp3_1.0.0.4
amd
epyc 7543p firmware
≤ milanpi-sp3_1.0.0.4
amd
epyc 7543 firmware
≤ milanpi-sp3_1.0.0.4
amd
epyc 7513 firmware
≤ milanpi-sp3_1.0.0.4
+10 more product configuration(s) — see NVD for full list

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.

addresses: CWE-20

Security testing and developer training directly verify and enforce proper input validation, reducing exploitability of injection and malformed-data weaknesses.

addresses: CWE-20

Security testing and evaluation at multiple SDLC stages directly detects missing or flawed input validation, with the required remediation process ensuring fixes are applied.

addresses: CWE-20

Directly implements checks on information inputs to reject invalid data before processing.

addresses: CWE-20

Spam protection mechanisms perform filtering and detection on inbound/outbound messages, directly compensating for missing or weak input validation of unsolicited content.

References