Description
A buffer overflow vulnerability in the XML processing functionality of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to the management web or dataplane interface to cause a denial of service (DoS) condition on VM-Series firewalls or execute arbitrary code with root privileges on the PA-Series firewalls.
The security risk posed by this issue is minimized when the management interface is restricted 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 .
Panorama is impacted by this vulnerability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Palo Alto Networks | Cloud NGFW | All | — |
| Palo Alto Networks | PAN-OS | 12.2.0 – < 12.2.3, 12.1.0 – < 12.1.4-h10, 11.2.0 – < 11.2.4-h21, 11.1.0 – < 11.1.4-h36, 10.2.0 – < 10.2.7-h37 | 12.2.3 |
| Palo Alto Networks | Prisma Access | 11.2.0 – < 11.2.4-h21, 10.2.0 – < 10.2.7-h37 | 11.2.4-h21 |
Advisories 3
- SSA-104023 SSA-104023: Multiple Vulnerabilities in Palo Alto Networks PAN-OS on RUGGEDCOM APE1808 Devices Siemens ProductCERT · Nov 10, 2026
- NCSC-2026-0369 Kwetsbaarheid verholpen in Palo Alto Networks PAN-OS NCSC-NL (Netherlands) · Sep 15, 2026
- WID-SEC-2026-3295 Palo Alto Networks PAN-OS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 10, 2026
References
- https://security.paloaltonetworks.com/CVE-2026-0310 vendor-advisory