VulnerabilityModified
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.
HIGH 7.5EPSS 4.63%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.63%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 4.63% probability · 92th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-295
- Affected
- haxx/libcurl · fedoraproject/fedora · debian/debian linux · netapp/clustered data ontap · netapp/hci management node · netapp/solidfire · netapp/hci bootstrap os · netapp/hci storage node firmware · apple/mac os x · apple/macos · siemens/simatic tim 1531 irc firmware · siemens/sinec infrastructure network services · oracle/communications billing and revenue management · oracle/communications cloud native core policy · oracle/essbase · oracle/peoplesoft enterprise peopletools · splunk/universal forwarder
- Source
- support@hackerone.com
EPSS 4.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://seclists.org/fulldisclosure/2021/Apr/50Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Apr/51Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Apr/54Mailing List, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-200951.pdfThird Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatch, Third Party Advisory
- https://curl.se/docs/CVE-2020-8286.htmlVendor Advisory
- https://hackerone.com/reports/1048457Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00029.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DAEHE2S2QLO4AO4MEEYL75NB7SAH5PSL/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NZUVSQHN2ESHMJXNQ2Z7T2EELBB5HJXG/Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202012-14Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210122-0007/Third Party Advisory
- https://support.apple.com/kb/HT212325Third Party Advisory
- https://support.apple.com/kb/HT212326Third Party Advisory
- https://support.apple.com/kb/HT212327Third Party Advisory
- https://www.debian.org/security/2021/dsa-4881Third Party Advisory
- https://www.oracle.com//security-alerts/cpujul2021.htmlThird Party Advisory
- https://www.oracle.com/security-alerts/cpuApr2021.htmlThird Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Apr/50Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Apr/51Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Apr/54Mailing List, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-200951.pdfThird Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatch, Third Party Advisory
- https://curl.se/docs/CVE-2020-8286.htmlVendor Advisory
- https://hackerone.com/reports/1048457Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00029.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DAEHE2S2QLO4AO4MEEYL75NB7SAH5PSL/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NZUVSQHN2ESHMJXNQ2Z7T2EELBB5HJXG/Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202012-14Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.