How severe is CVE-2025-67499?

CVE-2025-67499 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.

Is CVE-2025-67499 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-67499?

CVE-2025-67499 affects Linuxfoundation Cni Network Plugins. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-67499?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-67499 have an EU (EUVD) identifier?

Yes. CVE-2025-67499 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202173.

When was CVE-2025-67499 published?

CVE-2025-67499 was published on 2025-12-10 and last updated on 2026-06-17.

CVE-2025-67499

CVE-2025-67499 is a medium-severity vulnerability in Linuxfoundation Cni Network Plugins with a CVSS 3.x base score of 6.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 3.x base score 6.6)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-202173
Weakness: CWE-200
Affected product: Linuxfoundation Cni Network Plugins
Published: 2025-12-10
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-67499?: 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.
How severe is CVE-2025-67499?: CVE-2025-67499 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.
Is CVE-2025-67499 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-67499?: CVE-2025-67499 affects Linuxfoundation Cni Network Plugins. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-67499?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-67499 have an EU (EUVD) identifier?: Yes. CVE-2025-67499 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202173.
When was CVE-2025-67499 published?: CVE-2025-67499 was published on 2025-12-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:linuxfoundation:cni_network_plugins:*:*:*:*:*:*:*:*

More vulnerabilities in Linuxfoundation Cni Network Plugins

CVE-2020-10749 — Medium (CVSS 6.0): A vulnerability was found in all versions of containernetworking/plugins before version 0.8.6, that allows malicious…

All CVEs affecting Linuxfoundation Cni Network Plugins →

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →