CVE-2024-58040

Critical

Published: 30 September 2025

Published

30 September 2025

Modified

09 March 2026

KEV Added

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Patch

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CVSS Score v3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS Score 0.0003 9.3th percentile

Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-58040 is a critical-severity Insufficient Entropy (CWE-331) vulnerability in Qwer Crypt\. Its CVSS base score is 9.1 (Critical).

Operationally, ranked at the 9.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

Crypt::RandomEncryption for Perl version 0.01 uses insecure rand() function during encryption.

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

qwer

crypt\

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

Approved key-establishment methods mandate sufficient entropy during key generation, eliminating entropy-starved keys.

addresses: CWE-338

Security associations share details on cryptographically weak PRNGs, helping avoid their implementation in security-critical functions.