CVE-2026-0229 — Improper Check for Unusual or Exceptional Conditions in Palo Alto Networks Pan-os

CWE-754 — Improper Check for Unusual or Exceptional Conditions4 documents4 sources
Severity
6.6MEDIUMNVD
EPSS
0.0%
top 92.82%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Palo Alto Networks Pan-osPaloalto Cloud NgfwPaloalto Pan-os Firewall+2 more
Timeline
PublishedFeb 11

Description

A denial-of-service (DoS) vulnerability in the Advanced DNS Security (ADNS) feature of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker to initiate system reboots using a maliciously crafted packet. Repeated attempts to initiate a reboot causes the firewall to enter maintenance mode. Cloud NGFW and Prisma Access® are not impacted by this vulnerability.

CVSS vector

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

Affected Packages5 packages

▶CVEListV5palo_alto_networks/pan-os12.1.0 — 12.1.4+1
▶Palo Altopaloalto/panorama

🔴Vulnerability Details

2
GHSA
GHSA-cpfh-q3v8-wj73: A denial-of-service (DoS) vulnerability in the Advanced DNS Security (ADNS) feature of Palo Alto Networks PAN-OS® software enables an unauthenticated↗2026-02-11
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CVEList
PAN-OS: Denial of Service in Advanced DNS Security Feature↗2026-02-11
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📋Vendor Advisories

1
Palo Alto
PAN-OS: Denial of Service in Advanced DNS Security Feature↗
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CVE-2026-0229 — Palo Alto Networks Pan-os vulnerability | cvebase