VulnerabilityDeferred
CVE-2025-40929
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
MEDIUM 5.6EPSS 0.44%
Does this matter?
Lower severity and a low EPSS score (0.44%). Track it; it rarely justifies an emergency change on its own.
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
- CVSS 3.1
- 5.6 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
- EPSS
- 0.44% probability · 37th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-122
- Source
- 9b29abf9-4ab0-4765-b253-1875cd9b441e
References
- https://github.com/rurban/Cpanel-JSON-XS/commit/378236219eaa35742c3962ecbdee364903b0a1f2.patch
- https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.39/source/XS.xs#L713
- https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.40/changes
- http://www.openwall.com/lists/oss-security/2025/09/08/1
- https://lists.debian.org/debian-lts-announce/2025/09/msg00034.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.