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Vulnerability · Published Aug 13, 2025 · Assigned by palo_alto

CVE-2025-2182PAN-OS: Firewall Clusters using the MACsec Protocol Expose the Connectivity Association Key (CAK)

Medium 5.6

In plain English

A medium-severity security flaw in Cloud NGFW from Palo Alto Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).

Severity (CVSS 4.0)5.6Medium
Exploit odds (30 days)0.1%top 97.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 (as reported)

VendorProductVersions
Palo Alto Networks Cloud NGFW see references
Palo Alto Networks PAN-OS 11.2.0 – before 11.2.811.1.0 – before 11.1.10
Palo Alto Networks PAN-OS see references
Palo Alto Networks Prisma Access see references

Weakness: CWE-312 · Vector: CVSS:4.0/AV:P/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/AU:N/R:A/V:D/RE:M/U:Amber

References