CVE-2025-40928
highpriority · track · 0EPSS 0.007 · 52 %ileDEEURUEPSS · scored 2026-10-27
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
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (12)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-2171Red Hat Enterprise Linux (JSON-XS Perl): Schwachstelle ermöglicht Denial of ServiceDeutsch2025-09-30csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um einen Denial of Service Angriff durchzuführen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2025-40928cnnvd
- https://metacpan.org/release/MLEHMANN/JSON-XS-4.03/source/XS.xs#L256cnnvd
- https://security.metacpan.org/patches/J/JSON-XS/4.03/CVE-2025-40928-r1.patchcnnvd
- https://metacpan.org/release/MLEHMANN/JSON-XS-4.03/source/XS.xs#L256enisa_euvd
- https://security.metacpan.org/patches/J/JSON-XS/4.03/CVE-2025-40928-r1.patchenisa_euvd
- http://www.openwall.com/lists/oss-security/2025/09/08/2nvd
- https://lists.debian.org/debian-lts-announce/2025/09/msg00033.htmlnvd
- https://metacpan.org/release/MLEHMANN/JSON-XS-4.03/source/XS.xs#L256nvd
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