CVE-2026-0229Network attack vector

Unauthenticated firewall reboot via crafted ADNS packet

Published Feb 11, 2026 · Updated Feb 11, 2026

Denial of service in PAN-OS 11.2.0 through 11.2.9 and 12.1.0 through 12.1.3 allows remote attackers to reboot firewalls. Palo Alto Networks identifies ADNS packet handling as the locus but has not disclosed the exceptional condition that triggers the reboot. Exposure requires ADNS and a spyware profile action set to block, sinkhole, or alert; repeated packets force maintenance mode.

CVSS severity8.7
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Denial of service in PAN-OS 11.2.0 through 11.2.9 and 12.1.0 through 12.1.3 allows remote attackers to reboot firewalls. Palo Alto Networks identifies ADNS packet handling as the locus but has not disclosed the exceptional condition that triggers the reboot. Exposure requires ADNS and a spyware profile action set to block, sinkhole, or alert; repeated packets force maintenance mode.

The record

CVE
CVE-2026-0229
Published
Feb 11, 2026
Updated
Feb 11, 2026
Vendor
Palo Alto Networks
Product
PAN-OS
Classifications
CWE-754, CAPEC-153, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=11.2.0 <11.2.10 changes=[{"at":"11.2.10","status":"unaffected"}]
  2. Affected versionversion=12.1.0 <12.1.4 changes=[{"at":"12.1.4","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Palo Alto Networks · PAN-OSversion=11.2.0 <11.2.10 changes=[{"at":"11.2.10","status":"unaffected"}]; version=12.1.0 <12.1.4 changes=[{"at":"12.1.4","status":"unaffected"}]

Published CVSS scores

6.6Palo Alto NetworksCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
8.7Palo Alto NetworksCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-754Improper Check for Unusual or Exceptional Conditions
CAPEC-153Input Data Manipulation
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo