CVE-2025-0306 HIGH

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

Vendor Red Hat
Product Red Hat Enterprise Linux 10
Weakness CWE-385
Published January 9, 2025
Last update June 29, 2026

CVSS base score

7.4/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 9, 2025 CVE published
June 29, 2026 Record updated