CVE-2024-3191: A vulnerability, which was classified as critical, has been found in MailCleaner up to 2023.03.14

Q: How do I fix CVE-2024-3191?

mailcleaner: upgrade to newer than 2023.03.14. Exact commands for each OS are on this page.

Q: Is CVE-2024-3191 being exploited?

CVE-2024-3191 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-3191 affect?

CVE-2024-3191 affects mailcleaner. Severity is critical (CVSS 9.8). A vulnerability, which was classified as critical, has been found in MailCleaner up to 2023.03.14. This issue affects some unknown processing of the component Email Handler. The manipulation leads to os command injection. The attack may be

Q: How urgent is CVE-2024-3191?

Priority 67/100. Critical severity; EPSS top 8%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2024-3191 is a critical-severity flaw (CVSS 9.8) affecting mailcleaner. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability, which was classified as critical, has been found in MailCleaner up to 2023.03.14. This issue affects some unknown processing of the component Email Handler. The manipulation leads to os command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-262307.

Why this priority

Critical severity
EPSS top 8%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	5.2% (top 8%)
CISA exploited list	No
Weakness	CWE-78
Published	2024-04-29
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: mailcleaner

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-04-29 07:15 UTCPublished CVE record published
2026-06-17 07:43 UTCUpdated Record last modified

mailcleaner mailcleaner UPGRADE

Affected: <= 2023.03.14

Fixed in: newer than 2023.03.14

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy mailcleaner || rpm -q mailcleaner || mailcleaner --version

2. UPGRADE to newer than 2023.03.14 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mailcleaner

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mailcleaner

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Fedora 46 · noctalia · FIXED · 5.4.1-1.fc46 · FEDORA-2026-a4755e8ef7 · source

sudo dnf upgrade --advisory=FEDORA-2026-a4755e8ef7

Fedora ELN · efifs · FIXED · 1.13-1.eln159 · FEDORA-2026-3fd0bb7307 · source

sudo dnf upgrade --advisory=FEDORA-2026-3fd0bb7307

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-3191?

mailcleaner: upgrade to newer than 2023.03.14. Exact commands for each OS are on this page.

Is CVE-2024-3191 being exploited?

CVE-2024-3191 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-3191 affect?

CVE-2024-3191 affects mailcleaner. Severity is critical (CVSS 9.8). A vulnerability, which was classified as critical, has been found in MailCleaner up to 2023.03.14. This issue affects some unknown processing of the component Email Handler. The manipulation leads to os command injection. The attack may be

How urgent is CVE-2024-3191?

Priority 67/100. Critical severity; EPSS top 8%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-3196 MEDIUM 6.7 UPGRADE A vulnerability was found in MailCleaner up to 2023.03.14
CVE-2024-3195 MEDIUM 4.7 UPGRADE A vulnerability was found in MailCleaner up to 2023.03.14
CVE-2024-3194 MEDIUM 4.3 UPGRADE A vulnerability was found in MailCleaner up to 2023.03.14 and classified as problematic
CVE-2024-3193 HIGH 8.8 UPGRADE A vulnerability has been found in MailCleaner up to 2023.03.14 and classified as critical
CVE-2024-3192 MEDIUM 4.3 UPGRADE A vulnerability, which was classified as problematic, was found in MailCleaner up to 2023.03.14

References

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