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
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.6epss 0.4%
exploitation probability
0.4%top 64% of all CVEs
observed exploitation
nono source reports it
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
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Affected products
RURBAN · Cpanel::JSON::XSReferences
https://github.com/rurban/Cpanel-JSON-XS/commit/378236219eaa35742c3962ecbdee364903b0a1f2.patchhttps://lists.debian.org/debian-lts-announce/2025/09/msg00034.htmlhttps://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.39/source/XS.xs#L713https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.40/changeshttp://www.openwall.com/lists/oss-security/2025/09/08/1