CVE-2021-3618

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

2.02% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 80.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2022-03-23 00:00Z4 YR AGO

Last updated

2024-08-03 17:01Z2 YR AGO

Reserved

2021-06-24

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-295Improper Certificate ValidationBase

Data version

5.1

Document digest

4d17bf5134dab026946d2b13a8eaaf98c243d50a9aab5e045f05557a9250100c

• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1975623
• alpaca-attack.comhttps://alpaca-attack.com/
• lists.debian.org[debian-lts-announce] 20221122 [SECURITY] [DLA 3203-1] nginx security updatehttps://lists.debian.org/debian-lts-announce/2022/11/msg00031.htmlmailing-list