CVE-2021-26379
Critical
Published: 09 May 2023
Published
09 May 2023
Modified
28 January 2025
KEV Added
—
Patch
—
CVSS Score v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.0057
68.9th percentile
Risk Priority
20
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-26379 is a critical-severity an unspecified weakness vulnerability in Amd Epyc 72F3 Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 31.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-13185
Vulnerability details
Insufficient input validation of mailbox data in the SMU may allow an attacker to coerce the SMU to corrupt SMRAM, potentially leading to a loss of integrity and privilege escalation.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
amd
epyc 72f3 firmware
≤ milanpi_1.0.0.9
amd
epyc 7313 firmware
≤ milanpi_1.0.0.9
amd
epyc 7313p firmware
≤ milanpi_1.0.0.9
amd
epyc 7343 firmware
≤ milanpi_1.0.0.9
amd
epyc 7373x firmware
≤ milanpi_1.0.0.9
amd
epyc 73f3 firmware
≤ milanpi_1.0.0.9
amd
epyc 7413 firmware
≤ milanpi_1.0.0.9
amd
epyc 7443 firmware
≤ milanpi_1.0.0.9
amd
epyc 7443p firmware
≤ milanpi_1.0.0.9
amd
epyc 7453 firmware
≤ milanpi_1.0.0.9
+38 more product configuration(s) — see NVD for full list
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.