CVE-2025-40908

Critical

Description

YAML-LibYAML prior to 0.903.0 for Perl uses 2-args open, allowing existing files to be modified

SeverityCritical
CVSS9.1
Exploit probability—
ProductIngydotnet Yaml-libyaml
PublishedJun 1, 2025
First seenJun 1, 2025
Weakness typeCWE-552CWE-552

How to fix

Affected products

ProductAffected versionsFixed in
ingydotnet yaml-libyamlv < 0.903.00.903.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.