THREATPORT/VULNERABILITY/CVE-2020-13956
MEDIUM SEVERITY

CVE-2020-13956

Httpclient vulnerability

CVSS
5.3
EPSS
8.7%
EPSS pct
95th
Exploited
No known
Apache HttpClient versions prior to version 4.5.13 and 5.0.3 can misinterpret malformed authority component in request URIs passed to the library as java.net.URI object and pick the wrong target host for request execution.
Affected vendor
Apache
Affected product
Httpclient
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Published
2020-12-02

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 low impact to integrity.

Its EPSS score of 8.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2020-13956

  • Confirm whether Apache Httpclient is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-13956.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-13956

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-13956 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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Are you exposed to CVE-2020-13956?

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