TL;DR: CVE-2026-0322 is a known-exploited vulnerability in Palo Alto Networks PAN-OS. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk guidance and CISA’s “Forensics Triage Requirements”. Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. Then confirm no exposed, unpatched instance remains on your perimeter.
What CVE-2026-0322 is
According to the public vulnerability record, A remote code execution (RCE) vulnerability in the management interface of Palo Alto Networks PAN-OS® software enables an authenticated attacker with network access to execute arbitrary code with root privileges on the firewall. The security risk posed by this issue is minimized by restricting access to the management interface to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431. This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series).
CISA summarises it as: Palo Alto Networks PAN-OS contains a code injection vulnerability that could allow an authenticated attacker with network access to execute arbitrary code with root privileges on the firewall.
Affected product & severity
CVE-2026-0322 affects Palo Alto Networks PAN-OS. Confirm exact affected and fixed versions against the vendor's advisory.
| Property | Detail |
|---|---|
| CVE | CVE-2026-0322 |
| Vendor | Palo Alto Networks |
| Product | PAN-OS |
| CVSS | 7.2 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| Weakness | CWE-94 |
| Added to CISA KEV | 2026-10-14 |
Why it is urgent
This CVE is in the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2026-10-14) — a list of flaws with confirmed exploitation in the wild. US federal agencies are required to remediate KEV entries on a deadline; for everyone else it is a strong signal to prioritise this now rather than wait. There is no proof-of-concept or exploit detail in this advisory by design.
What to do now
- Follow CISA's required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk guidance and CISA’s “Forensics Triage Requirements”. Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
- Apply the vendor's patch or mitigation for Palo Alto Networks PAN-OS on every affected instance, per the official advisory linked below.
- Inventory every instance — production, staging, legacy and third-party appliances that bundle it. You cannot patch what you have forgotten you run.
- Verify the version actually deployed, not the one you think you run; the risk is the build actually serving traffic.
- Check for internet exposure. A known-exploited flaw on a reachable instance is an active risk — confirm none is exposed that should not be.
How to confirm your exposure
The hard part of a known-exploited CVE is rarely the patch — it is knowing where a reachable, unpatched instance still exists: a forgotten host, a staging box that drifted public, a third-party appliance. AssurePort's network and host penetration testing discovers exposed services, fingerprints their versions, and correlates them against known-exploited vulnerabilities — so a newly-weaponised CVE is checked against your real external footprint, including the hosts you don't have on a list. That is the window continuous testing is built to close.
Sources & further reading: NVD CVE-2026-0322 and the CISA KEV catalog are the authority on affected and fixed versions. Vendor/independent analysis: security.paloaltonetworks.com, cisa.gov. This advisory contains no exploit code.
Frequently asked questions
What is CVE-2026-0322?
CVE-2026-0322 is a vulnerability in Palo Alto Networks PAN-OS, rated HIGH (CVSS 7.2), listed in the CISA Known Exploited Vulnerabilities catalog. A remote code execution (RCE) vulnerability in the management interface of Palo Alto Networks PAN-OS® software enables an authenticated attacker with network access to execute arbitrary code with root privileges on the firewall.
Is CVE-2026-0322 being exploited?
Yes — it is in the CISA KEV catalog (added 2026-10-14), which lists vulnerabilities with confirmed in-the-wild exploitation. Treat it as an active, prioritise-now risk.
Which products are affected?
Palo Alto Networks PAN-OS. Confirm the exact affected and fixed versions against the vendor's official security advisory before acting.
What should I do right now?
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk guidance and CISA’s “Forensics Triage Requirements”. Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. Then inventory every instance, verify the version actually deployed, and confirm none is exposed and unpatched on your perimeter.