Palo Alto Networks Cloud NGFW: buffer overflow
High7.2CVE-2026-0310 · Published Sep 10, 2026 · updated Sep 11, 2026
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 versions
| Package | Affected | Fixed in |
|---|---|---|
| Cloud NGFW Product | all versions | No fix yet |
| PAN-OS Product | >= 12.2.0, < 12.2.3 | 12.2.3 |
| >= 12.1.0, < 12.1.4-h10 | 12.1.4-h10 | |
| >= 11.2.0, < 11.2.4-h21 | 11.2.4-h21 | |
| >= 11.1.0, < 11.1.4-h36 | 11.1.4-h36 | |
| Prisma Access Product | >= 11.2.0, < 11.2.4-h21 | 11.2.4-h21 |
| >= 10.2.0, < 10.2.7-h37 | 10.2.7-h37 |
Details and references
- CVSS 4.0
- CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N/E:U/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:U/V:D/RE:M/U:Red
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-787
More Palo Alto Networks advisories
All Palo Alto Networks| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 10 | Palo Alto Networks Checkov by Prisma Cloud: code execution | Low2.4 | 3.2.532 |
| Sep 10 | Palo Alto Networks Cortex XDR Broker VM: privilege escalation | Medium4.8 | 32.0.52 |
| Sep 10 | Palo Alto Networks Checkov by Prisma Cloud: command injection | Low1.1 | 3.2.502 |
| Sep 10 | Palo Alto Networks Prisma: local user could bypass configured DLP policy... | Medium5.8 | 26.2 |
| Sep 10 | Palo Alto Networks GlobalProtect App: privilege escalation | Medium5.9 | 6.3.3-h15+2 more |
| Sep 10 | Palo Alto Networks PAN-OS: cross-site scripting | Low1.1 | 12.1.10+2 more |