CVE-2017-20230CWE-121

Storable versions before 3.05 for Perl has a stack overflow

Critical · published April 21, 2026

CVSS v3.1
10.0
EPSS
1%
Percentile
50.1
In the wild
Unconfirmed
What it is

Storable versions before 3.05 for Perl has a stack overflow.

The retrieve_hook function stored the length of the class name into a signed integer but in read operations treated the length as unsigned. This allowed an attacker to craft data that could trigger the overflow.

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00641 · 50.1th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-04-21T15:26Z
EPSS history
Timeline
  • 21 APR 15:26Z
    Storable versions before 3.05 for Perl has a stack overflow
    cvelistv5