Medium severity4.0NVD Advisory· Published Apr 13, 2025· Updated Apr 15, 2026

CVE-2025-2814

Description

Crypt::CBC versions between 1.21 and 3.05 for Perl may use the rand() function as the default source of entropy, which is not cryptographically secure, for cryptographic functions.

This issue affects operating systems where "/dev/urandom'" is unavailable. In that case, Crypt::CBC will fallback to use the insecure rand() function.

Patches

37111f7cd894

https://github.com/cpan-authors/lib-crypt-cbcvia osv

37111f7cd894

https://github.com/lstein/Lib-Crypt-CBCvia osv

commit

Vulnerability mechanics

Generated by null/stub on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.

References

github.com/lstein/Lib-Crypt-CBC/commit/37111f7cd894bcec46156ba7f40a49c126ebf535.patchnvd
metacpan.org/dist/Crypt-CBC/source/lib/Crypt/CBC.pmnvd
perldoc.perl.org/functions/randnvd
security.metacpan.org/docs/guides/random-data-for-security.htmlnvd

News mentions

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cvss	0.260
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000