THREATPORT/VULNERABILITY/CVE-2021-41817
HIGH SEVERITY

CVE-2021-41817

Date vulnerability

CVSS
7.5
EPSS
3.2%
EPSS pct
87th
Exploited
No known
Date.parse in the date gem through 3.2.0 for Ruby allows ReDoS (regular expression Denial of Service) via a long string. The fixed versions are 3.2.1, 3.1.2, 3.0.2, and 2.0.1.
Affected vendor
Ruby Lang
Affected product
Date
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-1333 — Inefficient Regular Expression Complexity
Published
2022-01-01

Risk analysis

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

Its EPSS score of 3.2% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2021-41817

  • Confirm whether Ruby Lang Date is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-41817.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-41817

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