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01 Record

CVE-2021-32749

Possible RCE vulnerability in mailing action using mailutils (mail-whois)

MediumPUBLISHEDCNA: GitHub_M
CNA base score6.1 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N

02 Description

Possible RCE vulnerability in mailing action using mailutils (mail-whois)

03 Exploitation and scoring

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
3.42% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 88.7% of scored records. A rank, not a probability.
NVD base score
8.1 (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:H
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.

04 Metadata

Published
2021-07-16 00:00Z5 YR AGO
Last updated
2024-08-03 23:33Z2 YR AGO
Reserved
2021-05-12
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Medium (CVSS 6.1)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N
Weaknesses
  • CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base
  • CWE-94Improper Control of Generation of Code ('Code Injection')Base
Data version
5.1
Document digest
0c562b1d7d942b4b0c6e068c0a443d227e3f8f48205cdc369782e3f1258bedd1

05 Affected products

VendorProductVersionsPlatforms
fail2banfail2ban<= 0.9.7, >= 0.10.0, <= 0.10.6, >= 0.11.0, <= 0.11.2—

06 References

07 Fixed in

Arch Linux

  • fail2ban
    Fixed in 0.11.2-2

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

Debian 12

  • fail2ban
    Fixed in 0.11.2-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • fail2ban
    Fixed in 0.11.2-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • fail2ban
    Fixed in 0.11.2-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 14.04 LTS

  • fail2ban
    Fixed in 0.8.11-1ubuntu0.1~esm1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • fail2ban
    Fixed in 0.9.3-1ubuntu0.1~esm1
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • fail2ban
    Fixed in 0.10.2-2ubuntu0.1~esm1
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 20.04 LTS

  • fail2ban
    Fixed in 0.11.1-1ubuntu0.1~esm1
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.