CVE-2025-40929

Publication date 8 September 2025

Last updated 16 September 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.6 · Medium

Score breakdown

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

Status

Package Ubuntu Release Status
libcpanel-json-xs-perl 25.04 plucky
Fixed 4.39-1ubuntu0.1
24.04 LTS noble
Fixed 4.37-1ubuntu0.1
22.04 LTS jammy
Fixed 4.27-1ubuntu0.2
20.04 LTS focal
Needs evaluation
18.04 LTS bionic
Needs evaluation
16.04 LTS xenial
Needs evaluation

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
libcpanel-json-xs-perl

Severity score breakdown

Parameter Value
Base score 5.6 · Medium
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact Low
Availability impact Low
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L