vulnerability
Arch Linux: Insufficient validation (CVE-2021-25737)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:M/Au:S/C:P/I:P/A:N) | Sep 6, 2021 | Jul 11, 2025 | Nov 27, 2025 |
Severity
5
CVSS
(AV:N/AC:M/Au:S/C:P/I:P/A:N)
Published
Sep 6, 2021
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
A security issue was discovered in kube-apiserver before version 1.21.1 where a user may be able to redirect pod traffic to private networks on a node. Kubernetes already prevents creation of Endpoint IPs in the localhost or link-local range, but the same validation was not performed on EndpointSlice IPs.
Solution
arch-linux-upgrade-latest
References
- CVE-2021-25737
- https://attackerkb.com/topics/CVE-2021-25737
- URL-https://github.com/kubernetes/kubernetes/issues/102106
- URL-https://groups.google.com/g/kubernetes-security-announce/c/xAiN3924thY
- URL-https://security.archlinux.org/ASA-202106-29
- URL-https://security.netapp.com/advisory/ntap-20211004-0004/
- CWE-184
- CWE-601
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.