CVE-2026-0229

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

At a glance

Severity: MEDIUM 6.6
EPSS: EPSS 0.58 % · percentile 48 (2026-10-27)
State: PUBLISHED
Published: 2026-02-11
Updated: 2026-02-11
Assigner: palo_alto
NVD status: Deferred

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.

Scores

Version	Score	Vector	Scored by
CVSS 4.0	MEDIUM 6.6	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	palo_alto
CVSS 4.0	MEDIUM 6.6	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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:D/RE:M/U:Amber	NVD · psirt@paloaltonetworks.com (Secondary)

Weaknesses (CWE)

CWE-754

European references

ENISA EUVD · EUVD-2026-5938
GCVE · GCVE-0-2026-0229

CERT-FR advisories

CERTFR-2026-AVI-0160 — Multiples vulnérabilités dans les produits Palo Alto Networks · cert.ssi.gouv.fr

Affected products

Product	Versions
Palo Alto Networks · Cloud NGFW	unaffected All
Palo Alto Networks · PAN-OS	affected 12.1.0 < 12.1.4 ; affected 11.2.0 < 11.2.10 ; unaffected 11.1.0 < 11.1.11 ; unaffected 10.2.0 < 10.2.17
Palo Alto Networks · Prisma Access	unaffected All < 10.2.10-h28

References

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

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD