CVE-2021-25737
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Holes in EndpointSlice Validation Enable Host Network Hijack
A security issue was discovered in Kubernetes 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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Kubernetes
- Vendor
- Kubernetes
- Product
- Kubernetes
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| unspecified | affected | custom | Unavailable | 1.18.18 | None listed |
| unspecified | affected | custom | Unavailable | 1.19.10 | None listed |
| unspecified | affected | custom | Unavailable | 1.20.6 | None listed |
| unspecified | affected | custom | Unavailable | 1.21.0 | None listed |