CVE-2021-26371
Medium
Published: 09 May 2023
Published
09 May 2023
Modified
28 January 2025
KEV Added
—
Patch
—
CVSS Score v3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score
0.0013
31.8th percentile
Risk Priority
11
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-26371 is a medium-severity an unspecified weakness vulnerability in Amd Epyc 7773X Firmware. Its CVSS base score is 5.5 (Medium).
Operationally, ranked at the 31.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-13177
Vulnerability details
A compromised or malicious ABL or UApp could send a SHA256 system call to the bootloader, which may result in exposure of ASP memory to userspace, potentially leading to information disclosure.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
amd
epyc 7773x firmware
≤ milanpi_1.0.0.6
amd
epyc 7763 firmware
≤ milanpi_1.0.0.6
amd
epyc 7713p firmware
≤ milanpi_1.0.0.6
amd
epyc 7713 firmware
≤ milanpi_1.0.0.6
amd
epyc 7663 firmware
≤ milanpi_1.0.0.6
amd
epyc 7643 firmware
≤ milanpi_1.0.0.6
amd
epyc 75f3 firmware
≤ milanpi_1.0.0.6
amd
epyc 7573x firmware
≤ milanpi_1.0.0.6
amd
epyc 7543p firmware
≤ milanpi_1.0.0.6
amd
epyc 7543 firmware
≤ milanpi_1.0.0.6
+118 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.