Cyber Resilience

CVE-2021-26311

HighRCE

Published: 13 May 2021

Published
13 May 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0128 80.0th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-26311 is a high-severity Command Injection (CWE-77) vulnerability in Amd Epyc 7232P. Its CVSS base score is 7.2 (High).

Operationally, ranked in the top 20.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

In the AMD SEV/SEV-ES feature, memory can be rearranged in the guest address space that is not detected by the attestation mechanism which could be used by a malicious hypervisor to potentially lead to arbitrary code execution within the guest…

more

VM if a malicious administrator has access to compromise the server hypervisor.

CWE(s)

Related Threats

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

Affected Assets

amd
epyc 7232p
all versions
amd
epyc 7251
all versions
amd
epyc 7252
all versions
amd
epyc 7261
all versions
amd
epyc 7262
all versions
amd
epyc 7272
all versions
amd
epyc 7281
all versions
amd
epyc 7282
all versions
amd
epyc 72f3
all versions
amd
epyc 7301
all versions
+55 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.

References