CVE-2021-4044

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

50.09% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 98.8% 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:N/A:H

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

2021-12-14 18:40Z4 YR AGO

Last updated

2024-09-17 03:17Z2 YR AGO

Reserved

2021-12-02

Assigning CNA

openssl

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base
• CWE-252Unchecked Return ValueBase

Data version

5.1

Document digest

74fc0044768b12cfd476b9b0fd909974cb71cf87c9ab86993ec29e0e8ed9e238

• www.openssl.orghttps://www.openssl.org/news/secadv/20211214.txtx_refsource_CONFIRM
• git.openssl.orghttps://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=758754966791c537ea95241438454aa86f91f256x_refsource_CONFIRM
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20211229-0003/x_refsource_CONFIRM