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Medium severity5.4NVD Advisory· Published Apr 20, 2025· Updated Jun 17, 2026

CVE-2025-43920

CVE-2025-43920

Description

GNU Mailman 2.1.39, as bundled in cPanel (and WHM), in certain external archiver configurations, allows unauthenticated attackers to execute arbitrary OS commands via shell metacharacters in an email Subject line. NOTE: multiple third parties report that they are unable to reproduce this, regardless of whether cPanel or WHM is used.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

4
  • GNU/Mailman3 versions
    cpe:2.3:a:gnu:mailman:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:gnu:mailman:*:*:*:*:*:*:*:*range: >=2.1.1,<=2.1.39
    • (no CPE)range: = 2.1.39
    • (no CPE)range: 2.1.39
  • CPanel/Mailmanllm-fuzzy
    Range: = 2.1.39

Patches

Vulnerability mechanics

References

2

News mentions

0

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