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CVE-2025-0306

23
FAUCET Score

CVE-2025-0306 is a high-severity vulnerability in the Ruby interpreter, allowing for a "Marvin Attack." This attack enables an unauthenticated attacker to decrypt previously encrypted messages or forge signatures by interacting extensively with the vulnerable service. While the CVSS score is 7.4 (High) due to high impact on confidentiality and integrity, the attack complexity is also high. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
Red HatRed Hat Storage 3
Range not provided by sourceCNA affecteddefault unknown
Red HatRed Hat Enterprise Linux 6
Range not provided by sourceCNA affecteddefault unknown
Red HatRed Hat Enterprise Linux 7
Range not provided by sourceCNA affecteddefault unknown
Red HatRed Hat Enterprise Linux 8
Range not provided by sourceCNA affecteddefault unknown
Red HatRed Hat In-Vehicle Operating System 1
All Versions ImpactedCNA affecteddefault affected

CVSS Data

CVSS version used by this source: 3.1

7.4HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.64%
Probability of exploitation in next 30 days
EPSS Percentile
46.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0064 is in the 18th percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2025-0306Moderate

ruby: openssl: Ruby Marvin Attack

Jun 24, 2024

References

security.netapp.com / advisory/ntap-20250221-0009
access.redhat.com / security/cve/CVE-2025-0306
bugzilla.redhat.com / show_bug.cgi