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CVE-2025-2182· NVD / CVE Program· CNA palo_alto

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

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.

MediumCVSS 5.6 · v4.0—No exploit Fix available
Published
Aug 13, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 2th percentile
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Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.6 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · palo_alto
5.6
NVD has not scored this yet; the score shown is the CNA’s.

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Affected systems

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (palo_alto). Independent of NVD's CPE analysis and usually ahead of it.

  • Palo Alto Networks Cloud NGFW

    • All and later · before 3.2.449not affectedfixed in 3.2.449

  • Palo Alto Networks PAN-OS

    • 10.2.0, 10.1.0, Allnot affected
    • 11.2.0 and later · before 11.2.8affectedfixed in 11.2.8
    • 11.1.0 and later · before 11.1.10affectedfixed in 11.1.10

  • Palo Alto Networks Prisma Access

    • Allnot affected

Same product

palo alto networks: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-0128PAN-OS: Firewall Denial of Service (DoS) Using a Specially Crafted Packet
    34Monitor
  • CVE-2024-9472PAN-OS: Firewall Denial of Service (DoS) Using Specially Crafted Traffic
    34Monitor
  • CVE-2025-4230PAN-OS: Authenticated Admin Command Injection Vulnerability Through CLI
    33Monitor
  • CVE-2025-0126PAN-OS: Session Fixation Vulnerability in GlobalProtect SAML Login
    33Monitor
  • CVE-2026-0310PAN-OS: Buffer Overflow Vulnerability via XML Processing
    28Monitor
  • CVE-2025-0127PAN-OS: Authenticated Admin Command Injection Vulnerability in PAN-OS VM-Series
    28Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Palo Alto Networks PAN-OS11.1.10Vendor (CNA)
Palo Alto Networks PAN-OS11.2.8Vendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-0123124 days apartPAN-OS: Information Disclosure Vulnerability in HTTP/2 Packet Captures
    23Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Physical access to the device is required.
  • Administrator privileges are required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Physical
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
X

Weakness class (CWE)

CWE-312 · Cleartext Storage of Sensitive Information

CVSS 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:A/V:D/RE:M/U:Amber

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

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References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records