What is CVE-2026-5084?

CVE-2026-5084 is a medium-severity vulnerability in Aspeer Webdyne::session, classified under Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). CVSS score: 6.5/10. Published 2026-05-11.

How severe is CVE-2026-5084?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Aspeer Webdyne::session

CVE-2026-5084

WebDyne::Session versions through 2.075 for Perl generates the session id insecurely. The session handler generates the session id from an MD5 hash seeded with a call to the built-in rand() function. The rand function is passed a maximum…

EPSS: 0.000 (1.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Aspeer Webdyne::session — versions 0

Weakness classification (CWE)

References

9b29abf9-4ab0-4765-b253-1875cd9b441e
9b29abf9-4ab0-4765-b253-1875cd9b441e
9b29abf9-4ab0-4765-b253-1875cd9b441e (technical-description)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-5084?: CVE-2026-5084 is a medium-severity vulnerability in Aspeer Webdyne::session, classified under Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). CVSS score: 6.5/10. Published 2026-05-11.
How severe is CVE-2026-5084?: Medium severity. CVSS v3 base score is 6.5 out of 10.