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Vulnerabilities

Vulnerability · CVE-2020-8286

curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response.

Published Dec 14, 2020 · catalog updated Oct 14, 2026 · curl 7.41.0 through 7.73.0

Check if you run it

No confirmed exploitation is on record for CVE-2020-8286. EPSS is 4.63%. Act only if a listed version of curl 7.41.0 through 7.73.0 is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (curl 7.41.0 through 7.73.0).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
4.63%
Remediation
Advisory link
Affected products
cpe apple/mac os x · cpe debian/debian linux · cpe fedoraproject/fedora · cpe haxx/libcurl · cpe netapp/clustered data ontap · cpe netapp/hci bootstrap os

curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe apple/mac os xversion unspecified
  • cpe debian/debian linux10.0
  • cpe debian/debian linux9.0
  • cpe fedoraproject/fedora32
  • cpe fedoraproject/fedora33
  • cpe haxx/libcurlversion unspecified
  • cpe netapp/clustered data ontapversion unspecified
  • cpe netapp/hci bootstrap osversion unspecified
  • cpe netapp/hci management nodeversion unspecified
  • cpe netapp/hci storage node firmwareversion unspecified
  • cpe netapp/solidfireversion unspecified
  • cpe siemens/simatic tim 1531 irc firmwareversion unspecified

How to fix CVE-2020-8286

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2020-8286. EPSS is 4.63%. Act only if a listed version of curl 7.41.0 through 7.73.0 is installed.

Which versions are affected?

Compare what you have installed with debian/debian linux 10.0; debian/debian linux 9.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-295: Improper Certificate Validation. EPSS 4.63%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 14, 2020 · NIST NVD

    Detected

    curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response.

  2. Oct 14, 2026 · NIST NVD

    Updated

    curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response.

Sources

  • CVE.orgVulnerability recordCVE-2020-8286

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2020-8286

    30-day exploitation probability 4.6%

    first.org
  • NIST NVDVulnerability recordCVE-2020-8286

    curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 16, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.