CVE-2026-0310 Palo Alto Networks PAN-OS - Buffer Overflow

Palo Alto Networks PAN-OS contains a buffer overflow caused by improper XML processing, letting unauthenticated attackers with network access cause denial of service or execute arbitrary code with root privileges, exploit requires network access to management or dataplane interface.

CVSS base score 7.2 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.37% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Buffer Overflow
Impact
Denial Of Service, Remote Code Execution
CVSS vector
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
Published
10 September 2026
Updated
15 October 2026
Weakness
CWE-787

Vendor fix

Update to the latest PAN-OS version as per Palo Alto Networks guidance.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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