CVE-2025-40929

Published: Sep 8, 2025Modified: Nov 4, 2025

5.6

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Exploitability: 2.2 / Impact: 3.4

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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

Related CWEs

CWE-122

Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

References (5)

https://github.com/rurban/Cpanel-JSON-XS/commit/378236219eaa35742c3962ecbdee364903b0a1f2.patch

Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e

https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.39/source/XS.xs#L713

Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e

https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.40/changes

Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e

http://www.openwall.com/lists/oss-security/2025/09/08/1

Source: af854a3a-2127-422b-91ae-364da2661108

https://lists.debian.org/debian-lts-announce/2025/09/msg00034.html

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.