What’s Vulnerable › Vulnerabilities
CVE-2025-2182: PAN-OS: Firewall Clusters using the MACsec Protocol Expose the Connectivity Association Key (CAK)
- Severity: medium (CVSS 5.6 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-08-13 · updated 2026-06-17
- Weakness: CWE-312
Description
A problem with the implementation of the MACsec protocol in Palo Alto Networks PAN-OS® results in the cleartext exposure of the connectivity association key (CAK). This issue is only applicable to PA-7500 Series devices which are in an NGFW cluster. A user who possesses this key can read messages being sent between devices in a NGFW Cluster. There is no impact in non-clustered firewalls or clusters of firewalls that do not enable MACsec.
Affected products
- Palo Alto Networks PAN-OS: from 11.2.0 before 11.2.8; from 11.1.0 before 11.1.10 — fixed in 11.1.10, 11.2.8
How to fix
Upgrade to a fixed version: Palo Alto Networks PAN-OS 11.1.10, 11.2.8. Check the vendor advisory for mitigations.
References
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