CVE-2025-40928

HIGH

JSON::XS <4.04 - Buffer Overflow

Title source: llm
STIX 2.1

Description

JSON::XS before version 4.04 for Perl has an integer buffer overflow causing a segfault when parsing crafted JSON, enabling denial-of-service attacks or other unspecified impact

References (4)

Core 4

Scores

CVSS v3 7.5
EPSS 0.0013
EPSS Percentile 32.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-122
Status published
Products (1)
MLEHMANN/JSON::XS < 4.04
Published Sep 08, 2025
Tracked Since Feb 18, 2026