Integer Buffer Overflow in JSON::SIMD Affecting Perl Products
CVE-2025-40930

7.5HIGH

Key Information:

Vendor

Pjuhasz

Status
Json::simd
Vendor
CVE Published:
8 September 2025

What is CVE-2025-40930?

An integer buffer overflow was discovered in JSON::SIMD for Perl prior to version 1.07. This vulnerability can lead to segmentation faults when parsing specially crafted JSON data. Successful exploitation may facilitate denial-of-service attacks, rendering affected systems inoperable or unstable. It is essential for users of JSON::SIMD to upgrade to version 1.07 or later to mitigate this issue and maintain the integrity and availability of their applications.

Affected Version(s)

JSON::SIMD 0 < 1.07

References

https://metacpan.org/release/PJUHASZ/JSON-SIMD-1.06/sourc...
related
https://metacpan.org/release/PJUHASZ/JSON-SIMD-1.07/changes
release-notes
https://github.com/pjuhasz/JSON-SIMD/commit/9a87de7331c9f...
patch

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Michael Hudak of rasotec
.
CVE-2025-40930 : Integer Buffer Overflow in JSON::SIMD Affecting Perl Products