CVE-2021-26311

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.68% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 76.5% of scored records. A rank, not a probability.

NVD base score

7.2 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-05-13 11:06Z5 YR AGO

Last updated

2024-09-17 04:25Z2 YR AGO

Reserved

2021-01-29

Assigning CNA

AMD

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')Class

Data version

5.1

Document digest

6384dac5c7029e16bc7716a8f4d7338868878bcf7076476821e95e63eac77683

• www.amd.comhttps://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1004x_refsource_MISC