Medium 6.6Published Feb 11, 2026

CVE-2026-0229PAN-OS: Denial of Service in Advanced DNS Security Feature

Updated under an hour ago (Oct 26, 2026, 5:00 AM ET)

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It affects Palo Alto Networks Cloud NGFW and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Palo Alto Networks Cloud NGFW

Exploited in the last 30 days

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: 6.6 MEDIUM (v4.0, CNA)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/E:U/AU:Y/R:U/V:D/RE:M/U:Amber
Weakness (CWE): CWE-754
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: palo_alto
NVD analysis: Deferred
Record last updated: Feb 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Palo Alto Networks Cloud NGFW palo_alto_networks:cloud_ngfw (from the name)	all versions not affected	CNA record
Palo Alto Networks PAN-OS palo_alto_networks:pan-os	from 12.1.0 before 12.1.4; fixed at 12.1.4; from 11.2.0 before 11.2.10; fixed at 11.2.10; from 11.1.0 before 11.1.11 not affected; fixed at 11.1.11; from 10.2.0 before 10.2.17 not affected; fixed at 10.2.17	CNA record
Palo Alto Networks Prisma Access palo_alto_networks:prisma_access (from the name)	from All before 10.2.10-h28 not affected; fixed at 11.2.7-h10, fixed at 10.2.10-h28	CNA record

References

https://security.paloaltonetworks.com/CVE-2026-0229vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.