CVE-2021-44273

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

0.96% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 59.1% 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

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

2021-12-23 00:00Z4 YR AGO

Last updated

2024-08-04 04:17Z2 YR AGO

Reserved

2021-11-29

Assigning CNA

mitre

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

20722adcfb16574a75ca8acb0a1acebfb3ef071cc757eb91c0db2b7b2b23d726

• github.comhttps://github.com/e2guardian/e2guardian/issues/707
• github.comhttps://github.com/e2guardian/e2guardian/commit/eae46a7e2a57103aadca903c4a24cca94dc502a2
• www.openwall.com[oss-security] 20211223 CVE-2021-44273: e2guardian did not validate TLS hostnameshttp://www.openwall.com/lists/oss-security/2021/12/23/2mailing-list
• lists.debian.org[debian-lts-announce] 20230912 [SECURITY] [DLA 3564-1] e2guardian security updatehttps://lists.debian.org/debian-lts-announce/2023/09/msg00010.htmlmailing-list