CVE-2025-67499
CNI Plugins Portmap nftables backend intercepts non-local traffic
Description
The CNI portmap plugin allows containers to emulate opening a host port, forwarding that traffic to the container. Versions 1.6.0 through 1.8.0 inadvertently forward all traffic with the same destination port as the host port when the portmap plugin is configured with the nftables backend, thus ignoring the destination IP. This includes traffic not intended for the node itself, i.e. traffic to containers hosted on the node. Containers that request HostPort forwarding can intercept all traffic destined for that port. This requires that the portmap plugin be explicitly configured to use the nftables backend. This issue is fixed in version 1.9.0. To workaround, configure the portmap plugin to use the iptables backend. It does not have this vulnerability.
INFO
Published Date :
Dec. 10, 2025, 12:16 a.m.
Last Modified :
Oct. 14, 2026, 9:10 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.1 | LOW | [email protected] |
Solution
- Update the CNI portmap plugin to version 1.9.0.
- Alternatively, configure the plugin to use the iptables backend.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-67499.
| URL | Resource |
|---|---|
| https://github.com/containernetworking/plugins/pull/1210 | Issue Tracking Patch |
| https://github.com/containernetworking/plugins/releases/tag/v1.9.0 | Product Release Notes |
| https://github.com/containernetworking/plugins/security/advisories/GHSA-jv3w-x3r3-g6rm | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-67499 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-67499
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-67499 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-67499 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 14, 2026
Action Type Old Value New Value Added Translation Title: plugins de containernetworking, Description: El plugin CNI portmap permite a los contenedores emular la apertura de un puerto del host, reenviando ese tráfico al contenedor. Las versiones 1.6.0 a 1.8.0 reenvían inadvertidamente todo el tráfico con el mismo puerto de destino que el puerto del host cuando el plugin portmap está configurado con el backend nftables, ignorando así la IP de destino. Esto incluye tráfico no destinado al propio nodo, es decir, tráfico a contenedores alojados en el nodo. Los contenedores que solicitan el reenvío de HostPort pueden interceptar todo el tráfico destinado a ese puerto. Esto requiere que el plugin portmap esté configurado explícitamente para usar el backend nftables. Este problema está solucionado en la versión 1.9.0. Como solución alternativa, configure el plugin portmap para usar el backend iptables. No tiene esta vulnerabilidad. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'containernetworking', 'product': 'plugins', 'versions': [{'status': 'affected', 'version': '>= 1.6.0, < 1.9.0'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2025-67499', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2025-12-10T16:13:14.649378Z'} -
Initial Analysis by [email protected]
Mar. 17, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N Added CPE Configuration OR *cpe:2.3:a:linuxfoundation:cni_network_plugins:*:*:*:*:*:*:*:* versions from (including) 1.6.0 up to (excluding) 1.9.0 Added Reference Type GitHub, Inc.: https://github.com/containernetworking/plugins/pull/1210 Types: Issue Tracking, Patch Added Reference Type GitHub, Inc.: https://github.com/containernetworking/plugins/releases/tag/v1.9.0 Types: Product, Release Notes Added Reference Type GitHub, Inc.: https://github.com/containernetworking/plugins/security/advisories/GHSA-jv3w-x3r3-g6rm Types: Vendor Advisory -
New CVE Received by [email protected]
Dec. 10, 2025
Action Type Old Value New Value Added Description The CNI portmap plugin allows containers to emulate opening a host port, forwarding that traffic to the container. Versions 1.6.0 through 1.8.0 inadvertently forward all traffic with the same destination port as the host port when the portmap plugin is configured with the nftables backend, thus ignoring the destination IP. This includes traffic not intended for the node itself, i.e. traffic to containers hosted on the node. Containers that request HostPort forwarding can intercept all traffic destined for that port. This requires that the portmap plugin be explicitly configured to use the nftables backend. This issue is fixed in version 1.9.0. To workaround, configure the portmap plugin to use the iptables backend. It does not have this vulnerability. Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H Added CWE CWE-200 Added Reference https://github.com/containernetworking/plugins/pull/1210 Added Reference https://github.com/containernetworking/plugins/releases/tag/v1.9.0 Added Reference https://github.com/containernetworking/plugins/security/advisories/GHSA-jv3w-x3r3-g6rm