CVE-2025-11683
mediumpriority · track · 0EPSS 0.002 · 15 %ileDEEUUSEPSS · scored 2026-10-23
YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds read and potential information disclosure Missing null terminators in token.c leads to but-of-bounds read which allows adjacent variable to be read The issue is seen with complex YAML files with a hash of all keys and empty values. There is no indication that the issue leads to accessing memory outside that allocated to the module.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (19)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-2329cPanel/WHM (PostgreSQL, Perl): Mehrere SchwachstellenDeutsch2025-10-16csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in cPanel/WHM ausnutzen, um Dateien zu manipulieren und vertrauliche Informationen offenzulegen.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://github.com/cpan-authors/YAML-Syck/pull/65cnnvd
- https://metacpan.org/dist/YAML-Syck/changescnnvd
- https://vigilance.fr/vulnerability/YAML-Syck-out-of-bounds-memory-reading-via-Missing-Null-Terminators-48516cnnvd
- https://github.com/cpan-authors/YAML-Syck/pull/65enisa_euvd
- https://metacpan.org/dist/YAML-Syck/changesenisa_euvd
- https://github.com/cpan-authors/YAML-Syck/pull/65Issue Trackingnvd
- https://metacpan.org/dist/YAML-Syck/changesProductRelease Notesnvd
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