CVE-2021-41531

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

0.93% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 58.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2021-09-21 13:23Z4 YR AGO

Last updated

2024-09-16 20:27Z1 YR AGO

Reserved

2021-09-20

Assigning CNA

NLnet Labs

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-1288Improper Validation of Consistency within InputBase
• CWE-20Improper Input ValidationClass

Data version

5.1

Document digest

bf9fdb8d2ae80fc6bb1ac0bdcd98d44bea45b6a5a18f03a010109487e6ddbaa9

• www.nlnetlabs.nlhttps://www.nlnetlabs.nl/downloads/routinator/CVE-2021-41531.txtx_refsource_MISC