CVE-2021-3317

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

41.39% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 98.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/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

2021-01-26 22:33Z5 YR AGO

Last updated

2024-08-03 16:53Z2 YR AGO

Reserved

2021-01-26

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base

Data version

5.1

Document digest

f6ef582b2387cac11c5b408abb342b9b1d710694d935ac158ae9d0386bbbe9a5

• docs.unsafe-inline.comhttps://docs.unsafe-inline.com/0day/klog-server-authenticated-command-injectionx_refsource_MISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/161208/Klog-Server-2.4.1-Command-Injection.htmlx_refsource_MISC