CVE-2026-0322 in PAN-OS
Summary
by MITRE • 10/14/2026
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).
Cloud NGFW and Prisma® Access are not impacted by this vulnerability.
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Analysis
by VulDB Data Team • 10/14/2026
A critical remote code execution vulnerability exists within the management interface of Palo Alto Networks PAN-OS software, allowing an authenticated attacker with network access to execute arbitrary commands with root privileges on the affected firewall infrastructure. This flaw represents a severe compromise of system integrity because it grants full control over the security appliance itself rather than just bypassing its filtering rules. The attack vector requires authentication, meaning the adversary must possess valid credentials for the management interface before exploitation can occur. However, once authenticated access is established through network connectivity to the management port or IP address, the attacker can leverage this vulnerability to gain root-level control over the underlying operating system of the firewall device.
The technical nature of this flaw highlights a significant gap in input validation and privilege separation within the management plane components of PAN-OS. By achieving arbitrary code execution with elevated privileges, an adversary effectively neutralizes the security controls provided by the firewall itself. This capability allows for complete exfiltration of sensitive configuration data, including SSL private keys used for decryption services, as well as credentials stored in device configurations. Furthermore, a compromised management interface can be utilized to pivot attacks into internal networks that rely on this firewall for segmentation and traffic inspection, thereby undermining the entire security architecture protected by the appliance.
From an industry standard perspective, this vulnerability aligns with CWE-78 Improper Neutralization of Special Elements used in an OS Command, commonly known as OS command injection, combined with CWE-269 Improvement Control that allows privilege escalation to a higher level than intended. In terms of MITRE ATT&CK framework mapping, the exploitation path corresponds to Initial Access via Valid Accounts and Execution through Command and Scripting Interpreter, specifically leveraging local system privileges for persistence or further lateral movement within the enterprise network environment. The impact extends beyond immediate data theft to include potential denial of service if malicious commands disrupt firewall operations, although the primary concern remains unauthorized administrative control.
The scope of this vulnerability encompasses PAN-OS software deployed on PA-Series physical firewalls and VM-Series virtual firewalls across various versions, as well as Panorama appliances in both virtual and M-series hardware formats. It is important to note that Cloud NGFW solutions and Prisma Access services are not impacted by this specific flaw due to their distinct architectural designs and separation of management planes from the core data plane processing engines used in traditional on-premises deployments. Organizations utilizing these unaffected cloud-native security platforms do not need to apply mitigations for this particular issue, whereas those relying on PAN-OS based infrastructure must take immediate action to secure their environments against exploitation by authenticated insiders or external attackers who have obtained valid credentials through phishing or credential stuffing attacks.
To mitigate the risk posed by this vulnerability, Palo Alto Networks recommends strictly restricting access to the management interface exclusively to trusted internal IP addresses in accordance with best practice deployment guidelines. This network-level segmentation ensures that even if an attacker possesses valid administrative credentials, they cannot reach the vulnerable management endpoint from untrusted networks such as the internet or guest Wi-Fi segments. Implementing this restriction involves configuring firewall rules on upstream devices or using dedicated out-of-band management networks to isolate the PAN-OS management plane from general user traffic. Additionally, organizations should enforce multi-factor authentication for all administrative accounts and regularly audit access logs to detect any unauthorized login attempts targeting the management interface.
Beyond network segmentation, comprehensive defense strategies require rigorous credential hygiene practices including strong password policies and regular rotation of administrative keys. Security teams should also monitor for anomalous behavior in system logs that might indicate exploitation attempts or post-compromise activities such as unexpected configuration changes or outbound connections from the firewall itself. By combining strict access controls with continuous monitoring and adherence to recommended hardening procedures, organizations can significantly reduce their exposure to this critical vulnerability while maintaining operational continuity of their network security infrastructure.