CVE-2020-8286: apple mac_os_x Improper Certificate Validation
CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2020-8286UBUNTU-CVE-2020-8286DEBIAN-CVE-2020-8286
Published 14-12-2020Last modified 14-10-2026
Vulnerability summary
CVE-2020-8286 is a high (CVSS 7.5) Improper Certificate Validation vulnerability in apple mac_os_x. EPSS estimates a 4.63% chance of exploitation in the next 30 days, higher than 91.5% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
4.63%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 13 · Related 8Timeline
- 14-12-2020PublishedVulnerability first disclosed.
- 14-10-2026Last modifiedVulnerability information updated.
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 metrics
5 scores · 4 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
4.63%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
0.00 pp
From 4.63% on 18-09-2026
18-09-202618-10-2026
EPSS score4.63%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (hackerone.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Netapp5 products
Oracle4 products
Apple2 products
- mac_os_x< 10.14.6 | ≥ 10.15, < 10.15.7 | 10.14.6 | 10.14.6:security_update_2019-001 | 10.14.6:security_update_2019-002 | 10.14.6:security_update_2020-001 | 10.14.6:security_update_2020-002 | 10.14.6:security_update_2020-003 | 10.14.6:security_update_2020-004 | 10.14.6:security_update_2020-005 | 10.14.6:security_update_2020-006 | 10.14.6:security_update_2020-007 | 10.14.6:security_update_2021-001 | 10.15.7 | 10.15.7:security_update_2020-001 | 10.15.7:security_update_2021-001 | 10.15.7:supplemental_update
- macos≥ 11.0, < 11.3
Debian2 products
- curl< 7.74.0-1
- debian_linuxEOL9.0 | 10.0
Siemens2 products
Alpine1 product
- curl< 7.66.0-r3 | < 7.67.0-r3 | < 7.69.1-r3 | < 7.74.0-r0
Fedoraproject1 product
- fedoraEOL32 | 33
Haxx1 product
- libcurl≥ 7.41.0, < 7.74.0
Splunk1 product
- universal_forwarder≥ 8.2.0, < 8.2.12 | ≥ 9.0.0, < 9.0.6 | 9.1.0
Ubuntu1 product
- curl< 7.47.0-1ubuntu2.18 | < 7.58.0-2ubuntu3.12 | < 7.68.0-1ubuntu2.4
10 vendors · 20 products
References
28 links
lists.debian.org/debian-lts-announce/2020/12/msg00029.htmlMailing ListX Refsource MLISTThird Party Advisory
