CVE-2015-3900 is a low severity vulnerability with a CVSS score of 0.0. No known exploits currently, and patches are available. This is classified as a zero-day vulnerability.
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Lower probability of exploitation
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
RubyGems 2.0.x before 2.0.16, 2.2.x before 2.2.4, and 2.4.x before 2.4.7 does not validate the hostname when fetching gems or making API requests, which allows remote attackers to redirect requests to arbitrary domains via a crafted DNS SRV record, aka a "DNS hijack attack."
| Vendor | Product |
|---|---|
| Rubygems | Rubygems |
| Ruby Lang | Ruby |
| Redhat | Enterprise Linux |
| Oracle | Solaris |