Improper Check for Unusual or Exceptional Conditions in Palo Alto PAN-OS - CVE-2026-0227
Published: January 14, 2026
Vulnerability identifier: #VU121528
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-0227
CWE-ID: CWE-754
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error handling when handling network traffic. A remote attacker can send specially crafted packets to the device and perform a denial of service (DoS) attack.
Affected software
Palo Alto PAN-OS
How to mitigate CVE-2026-0227
Install updates from vendor's website.
Palo Alto PAN-OS - addressed in versions 10.2.7-h32, 10.2.10-h30, 10.2.13-h18, 10.2.16-h6, 10.2.18-h1, 11.1.4-h27, 11.1.6-h23, 11.1.10-h9, 11.1.13, 11.2.4-h15, 11.2.7-h8, 11.2.10-h2, 12.1.4