THREATPORT/VULNERABILITY/CVE-2020-8231
HIGH SEVERITY

CVE-2020-8231

Libcurl vulnerability

CVSS
7.5
EPSS
3.7%
EPSS pct
89th
Exploited
No known
Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data.
Affected vendor
Haxx
Affected product
Libcurl
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness type (CWE)
Published
2020-12-14

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 confidentiality.

Its EPSS score of 3.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2020-8231

  • Confirm whether Haxx Libcurl is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-8231.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-8231

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-8231 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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Are you exposed to CVE-2020-8231?

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