HIGH
CVE-2020-8286
CWE-295Published: December 14, 2020· Updated: Jun 17, 2026
7.5
CVSS v3.1
Official 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.
Technical Analysis
CVE-2020-8286 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 7.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Vendors & Products
Apple2 product(s)
mac os xmacos
Debian1 product(s)
debian linux
Fedora1 product(s)
fedora
haxx1 product(s)
libcurl
netapp7 product(s)
clustered data ontaphci management nodesolidfirehci bootstrap oshci compute nodehci storage node firmwarehci storage node
Oracle4 product(s)
communications billing and revenue managementcommunications cloud native core policyessbasepeoplesoft enterprise peopletools
siemens3 product(s)
simatic tim 1531 irc firmwaresimatic tim 1531 ircsinec infrastructure network services
splunk1 product(s)
universal forwarder
Source: NVD CPE · 25 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (38)
→
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
Quick Facts
CVE IDCVE-2020-8286
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-295
CISA KEVNo
Affected8 vendor(s)
PublishedDec 14, 2020
Related CVEs (CWE-295)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-8286 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.