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Vulnerability details: VCID-w63n-2fx2-hyht
Vulnerability ID VCID-w63n-2fx2-hyht
Aliases CVE-2021-3636
Summary openshift: Injected service-ca.crt incorrectly contains additional internal CAs
Status Published
Exploitability 0.5
Weighted Severity 4.1
Risk 2.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-295 Improper Certificate Validation
System Score Found at
cvssv3 4.6 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-3636.json
epss 0.00031 https://api.first.org/data/v1/epss?cve=CVE-2021-3636
epss 0.00031 https://api.first.org/data/v1/epss?cve=CVE-2021-3636
epss 0.00031 https://api.first.org/data/v1/epss?cve=CVE-2021-3636
epss 0.00031 https://api.first.org/data/v1/epss?cve=CVE-2021-3636
epss 0.00031 https://api.first.org/data/v1/epss?cve=CVE-2021-3636
epss 0.00031 https://api.first.org/data/v1/epss?cve=CVE-2021-3636
epss 0.00031 https://api.first.org/data/v1/epss?cve=CVE-2021-3636
epss 0.00031 https://api.first.org/data/v1/epss?cve=CVE-2021-3636
epss 0.00031 https://api.first.org/data/v1/epss?cve=CVE-2021-3636
epss 0.00031 https://api.first.org/data/v1/epss?cve=CVE-2021-3636
epss 0.00031 https://api.first.org/data/v1/epss?cve=CVE-2021-3636
epss 0.00031 https://api.first.org/data/v1/epss?cve=CVE-2021-3636
epss 0.00031 https://api.first.org/data/v1/epss?cve=CVE-2021-3636
epss 0.00031 https://api.first.org/data/v1/epss?cve=CVE-2021-3636
epss 0.00031 https://api.first.org/data/v1/epss?cve=CVE-2021-3636
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-3636.json
https://api.first.org/data/v1/epss?cve=CVE-2021-3636
1978621 https://bugzilla.redhat.com/show_bug.cgi?id=1978621
RHSA-2021:2437 https://access.redhat.com/errata/RHSA-2021:2437
No exploits are available.
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-3636.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.08805
EPSS Score 0.00031
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T14:01:53.076711+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-3636.json 38.0.0