CVE-2021-40491

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

0.99% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 62.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2021-09-03 00:00Z5 YR AGO

Last updated

2024-08-04 02:44Z2 YR AGO

Reserved

2021-09-03

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-345Insufficient Verification of Data AuthenticityClass

Data version

5.1

Document digest

9cfd49dc6dd61ad4dccad260dbeb38ecdccaaa89c6911c0390a8b9e79f8989c7

• bugs.debian.orghttps://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993476
• git.savannah.gnu.orghttps://git.savannah.gnu.org/cgit/inetutils.git/commit/?id=58cb043b190fd04effdaea7c9403416b436e50dd
• lists.gnu.orghttps://lists.gnu.org/archive/html/bug-inetutils/2021-06/msg00002.html
• lists.debian.org[debian-lts-announce] 20221125 [SECURITY] [DLA 3205-1] inetutils security updatehttps://lists.debian.org/debian-lts-announce/2022/11/msg00033.htmlmailing-list