Disclosure summary
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
Source-reported weakness categories
CWE-122
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
Microsoft Security Updates (CVRF) · 2025-Sep
Open original source · Updated Nov 17, 2025
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
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 7.5
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | cbl2 perl-JSON-XS 4.03-2 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 perl-JSON-XS 4.03-2 on Azure Linux 3.0 | (MSRC status code 3) |
Vendor remediation references
- CBL-Mariner Releases · build 4.04-1 · product IDs 20411-17086, 20410-17084
- Vendor guidance · product IDs 20411-17086, 20410-17084
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2025-09-10T21:01:27-04:00
MODIFIED 2025-11-17T20:36:21-05:00
INGESTED 2026-10-08T12:45:41-04:00