InfraGuard

Kubernetes 1.18 vulnerabilities

22 known CVEs affect the 1.18 line of Kubernetes.

8.8 max CVSSSupport ended 2021-06-18

Fixed in

1.18.61.18.101.18.181.18.19
Check your versionkubelet --version

CVEs affecting 1.18

CVE Title CVSS Exploited EPSS Published
CVE-2021-25741 Symlink Exchange Can Allow Host Filesystem Access 8.8 — 2021-09-21
CVE-2023-3676 Kubernetes - Windows nodes - Insufficient input sanitization leads to privilege escalation 8.8 — 2023-11-01
CVE-2023-3955 Kubernetes - Windows nodes - Insufficient input sanitization leads to privilege escalation 8.8 — 2023-11-01
CVE-2023-5528 Kubernetes - Windows nodes - Insufficient input sanitization in in-tree storage plugin leads to privilege esca... 7.2 — 2023-11-15
CVE-2022-3294 Node address isn't always verified when proxying 6.6 — 2023-03-01
CVE-2021-25735 Validating Admission Webhook does not observe some previous fields 6.5 — 2021-09-06
CVE-2022-3162 Unauthorized read of Custom Resources 6.5 — 2023-03-01
CVE-2023-2727 Bypassing policies imposed by the ImagePolicyWebhook admission plugin 6.5 — 2023-07-04
CVE-2023-2728 Bypassing enforce mountable secrets policy imposed by the ServiceAccount admission plugin 6.5 — 2023-07-04
CVE-2020-8559 Privilege escalation from compromised node to cluster 6.4 — 2020-07-22
CVE-2020-8555 Kubernetes kube-controller-manager SSRF 6.3 — 2020-06-05
CVE-2021-25736 Windows kube-proxy LoadBalancer contention 5.8 — 2023-10-30
CVE-2020-8557 Kubernetes node disk Denial of Service by writing to container /etc/hosts 5.5 — 2020-07-24
CVE-2020-8558 Kubernetes node setting allows for neighboring hosts to bypass localhost boundary 5.4 — 2020-07-28
CVE-2020-8563 Secret leaks in logs for vSphere Provider kube-controller-manager 4.7 — 2020-12-08
CVE-2020-8564 Docker config secrets leaked when file is malformed and loglevel >= 4 4.7 — 2020-12-08
CVE-2020-8565 Incomplete fix for CVE-2019-11250 allows for token leak in logs when logLevel >= 9 4.7 — 2020-12-08
CVE-2020-8566 Ceph RBD adminSecrets exposed in logs when loglevel >= 4 4.7 — 2020-12-08
CVE-2023-2431 Bypass of seccomp profile enforcement 3.4 — 2023-06-16
CVE-2021-25743 ANSI escape characters in kubectl output are not being filtered 3.0 — 2022-01-07
CVE-2021-25737 Holes in EndpointSlice Validation Enable Host Network Hijack 2.7 — 2021-09-06
CVE-2020-8562 Bypass of Kubernetes API Server proxy TOCTOU 2.2 — 2022-02-01

Track these versions on your own servers

InfraGuard collects installed software versions from every server and flags the ones with known vulnerabilities. Self-hosted — nothing leaves your network.

Weekly exploited-vulnerability digest

The KEV additions that matter for self-hosted servers, once a week. No other mail.

Data: CVE List (CVE® Program), NVD, CISA KEV, FIRST EPSS (see EPSS at https://www.first.org/epss), endoflife.date. Software list: awesome-selfhosted (CC BY-SA 3.0).