VulnerabilityAnalyzed
CVE-2025-40905
WWW::OAuth 1.000 and earlier for Perl uses the rand() function as the default source of entropy, which is not cryptographically secure, for cryptographic functions.
HIGH 7.3EPSS 0.26%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
WWW::OAuth 1.000 and earlier for Perl uses the rand() function as the default source of entropy, which is not cryptographically secure, for cryptographic functions.
- CVSS 3.1
- 7.3 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- EPSS
- 0.26% probability · 18th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-338
- Affected
- dbook/www\
- Source
- 9b29abf9-4ab0-4765-b253-1875cd9b441e
References
- https://metacpan.org/release/DBOOK/WWW-OAuth-1.000/source/lib/WWW/OAuth.pm#L86Issue Tracking, Product
- https://perldoc.perl.org/functions/randThird Party Advisory
- https://security.metacpan.org/docs/guides/random-data-for-security.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2026/02/13/1Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.