THREATPORT/VULNERABILITY/CVE-2018-16396
HIGH SEVERITY

CVE-2018-16396

Ruby vulnerability

CVSS
8.1
EPSS
8.0%
EPSS pct
94th
Exploited
No known
An issue was discovered in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3. It does not taint strings that result from unpacking tainted strings with some formats.
Affected vendor
Ruby Lang
Affected product
Ruby
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2018-11-16

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 8.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2018-16396

  • Confirm whether Ruby Lang Ruby is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-16396.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-16396

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-16396 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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