CVE-2017-20240CWE-208

Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks

Medium · published June 12, 2026

CVSS v3.1
5.9
EPSS
0%
Percentile
23.4
In the wild
Unconfirmed
What it is

Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks.

These versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00319 · 23.4th percentile
Weakness
CWE-208 · Observable Timing Discrepancy
Published
2026-06-12T13:19Z
EPSS history
Timeline
  • 12 JUN 13:19Z
    Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks
    cvelistv5