What’s Vulnerable › Vulnerabilities

CVE-2025-0306: Ruby: openssl: ruby marvin attack

• Severity: high (CVSS 7.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-01-09 · updated 2026-06-30
• Weakness: CWE-385

Description

A vulnerability was found in Ruby. The Ruby interpreter is vulnerable to the Marvin Attack. This attack allows the attacker to decrypt previously encrypted messages or forge signatures by exchanging a large number of messages with the vulnerable service.

References

• https://access.redhat.com/security/cve/CVE-2025-0306
• https://bugzilla.redhat.com/show_bug.cgi?id=2336100
• https://security.netapp.com/advisory/ntap-20250221-0009/

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