CVE-2025-40930

HIGH

JSON::SIMD < 1.07 - Heap-based Buffer Overflow via Crafted JSON Parsing

Title source: llm
STIX 2.1

Description

JSON::SIMD before version 1.07 and earlier 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 0.0063
EPSS Percentile 45.4%
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)
PJUHASZ/JSON::SIMD < 1.07
Published Sep 08, 2025
Tracked Since Feb 18, 2026