Description
Cpanel::JSON::XS before version 4.40 for Perl has an integer buffer overflow causing a segfault when parsing crafted JSON, enabling denial-of-service attacks or other unspecified impact
References (5)
Core 5
Core References
Release Notes release-notes
https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.40/changes
Patch patch
https://github.com/rurban/Cpanel-JSON-XS/commit/378236219eaa35742c3962ecbdee364903b0a1f2.patch
Release Notes related
https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.39/source/XS.xs#L713
Scores
CVSS v3
5.6
EPSS
0.0006
EPSS Percentile
18.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-122
Status
published
Products (1)
RURBAN/Cpanel::JSON::XS
< 4.40
Published
Sep 08, 2025
Tracked Since
Feb 18, 2026