CVE-2024-3191

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2024-04-29. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 5%CVSS: 9.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation5% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
5%
EPSS %ILE
92%
KEV
Not listed

Published

April 29, 2024

Last Modified

April 11, 2025

Advisory Details (2)

Auto-updated May 30, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic

[MZ-24-01] MailCleaner / modzero

https://modzero.com/en/advisories/mz-24-01-mailcleaner/
github_pr

Bug fixes

Fix merged in MailCleaner/MailCleaner PR #601 on 2024-04-23 — awaiting tagged release

https://github.com/MailCleaner/MailCleaner/pull/601

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 41× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-27 14:11 UTCEPSS rescore
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  7. 2026-07-23 02:36 UTCEG score recompute
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  73. 2026-05-24 03:48 UTCEG score recompute
  74. 2026-05-24 03:48 UTCGHSA enrichment
  75. 2026-05-24 01:29 UTCOSV refresh

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Frequently asked(5)

What is CVE-2024-3191?
CVE-2024-3191 is a critical vulnerability published on April 29, 2024. 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…
When was CVE-2024-3191 disclosed?
CVE-2024-3191 was first published in the National Vulnerability Database on April 29, 2024, with the most recent update on April 11, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-3191 actively exploited?
CVE-2024-3191 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5% probability of exploitation in the next 30 days, which ranks it in the top 8.5% of all scored CVEs.
What is the CVSS score of CVE-2024-3191?
CVE-2024-3191 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2024-3191?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-3191, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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