CVE-2025-2814

4.0 mediumEPSS 0.2%

Medium (4.0). EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.0 medium

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 9% of CVEs (scores of 2026-10-31)
CWEs: CWE-329, CWE-331, CWE-338
Published: 2025-04-13
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://github.com/lstein/Lib-Crypt-CBC/commit/37111f7cd894bcec46156ba7f40a49c126ebf535.patch
https://metacpan.org/dist/Crypt-CBC/source/lib/Crypt/CBC.pm#L777
https://perldoc.perl.org/functions/rand
https://security.metacpan.org/docs/guides/random-data-for-security.html

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