CVE-2025-11683

MEDIUM EPSS 15.3%
Published Oct 16, 20258mo ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Oct 16, 2025 8mo ago
Last Modified Jun 17, 2026 2w ago

Description

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 Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Adjacent
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
15.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety

Affected Products 1

VendorProductVersionRange
toddryaml\\ <1.36

References 2

  • github.com https://github.com/cpan-authors/YAML-Syck/pull/65
    Issue Tracking
  • metacpan.org https://metacpan.org/dist/YAML-Syck/changes
    ProductRelease Notes

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.