Improper Check for Unusual or Exceptional Conditions in Palo Alto PAN-OS - CVE-2026-0229
Published: February 12, 2026
Vulnerability identifier: #VU122750
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-2026-0229
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 in the Advanced DNS Security (ADNS) feature. A remote attacker can send specially crafted data to the application and perform a denial of service (DoS) attack.
Affected software
Palo Alto PAN-OS
How to mitigate CVE-2026-0229
Install updates from vendor's website.
Palo Alto PAN-OS - addressed in versions 11.2.10, 12.1.4