CVE-2021-38542

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

2.34% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 83.1% of scored records. A rank, not a probability.

NVD base score

5.9 (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: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

2022-01-04 08:55Z4 YR AGO

Last updated

2024-08-04 01:44Z2 YR AGO

Reserved

2021-08-11

Assigning CNA

apache

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')Class
• CWE-327Use of a Broken or Risky Cryptographic AlgorithmClass

Data version

5.1

Document digest

7cc4498beb4090a9b368f86d09c4f28878fa232960ec1c8d8a340c8ebde71752

• www.openwall.comhttps://www.openwall.com/lists/oss-security/2022/01/04/1x_refsource_MISC
• www.openwall.com[oss-security] 20220104 CVE-2021-38542: Apache James vulnerable to STARTTLS command injection (IMAP and POP3)http://www.openwall.com/lists/oss-security/2022/01/04/1mailing-listx_refsource_MLIST
• www.openwall.com[oss-security] 20220919 CVE-2022-28220: STARTTLS command injection in Apache JAMEShttp://www.openwall.com/lists/oss-security/2022/09/20/1mailing-listx_refsource_MLIST