PAN-OS: Denial of Service in Advanced DNS Security Feature
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Palo Alto Networks | Cloud NGFW | — | All | Patch available | CNA |
| Palo Alto Networks | PAN-OS | 12.1.0 to before 12.1.4; 11.2.0 to before 11.2.10 | 12.1.4, 11.2.10, 11.1.0, 10.2.0 | Patch available | CNA |
| Palo Alto Networks | Prisma Access | — | All | Patch available | CNA |
- Cloud NGFW VendorPalo Alto Networks Affected — Fixed in All Patch available CNA
- PAN-OS VendorPalo Alto Networks Affected 12.1.0 to before 12.1.4; 11.2.0 to before 11.2.10 Fixed in 12.1.4, 11.2.10, 11.1.0, 10.2.0 Patch available CNA
- Prisma Access VendorPalo Alto Networks Affected — Fixed in All Patch available CNA
CPE names CNA · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:palo_alto_networks:pan-os:12.1.3:*:*:*:*:*:*:* | 12.1.3 | — | Palo Alto Networks |
| cpe:2.3:o:palo_alto_networks:pan-os:12.1.2:*:*:*:*:*:*:* | 12.1.2 | — | Palo Alto Networks |
| cpe:2.3:o:palo_alto_networks:pan-os:11.2.9:*:*:*:*:*:*:* | 11.2.9 | — | Palo Alto Networks |
| cpe:2.3:o:palo_alto_networks:pan-os:11.2.8:*:*:*:*:*:*:* | 11.2.8 | — | Palo Alto Networks |
| cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:*:*:*:*:*:*:* | 11.2.7 | — | Palo Alto Networks |
| cpe:2.3:o:palo_alto_networks:pan-os:11.2.6:*:*:*:*:*:*:* | 11.2.6 | — | Palo Alto Networks |
| cpe:2.3:o:palo_alto_networks:pan-os:11.2.5:*:*:*:*:*:*:* | 11.2.5 | — | Palo Alto Networks |
| cpe:2.3:o:palo_alto_networks:pan-os:11.2.4:*:*:*:*:*:*:* | 11.2.4 | — | Palo Alto Networks |
| cpe:2.3:o:palo_alto_networks:pan-os:11.2.3:*:*:*:*:*:*:* | 11.2.3 | — | Palo Alto Networks |
| cpe:2.3:o:palo_alto_networks:pan-os:11.2.2:*:*:*:*:*:*:* | 11.2.2 | — | Palo Alto Networks |
- cpe:2.3:o:palo_alto_networks:pan-os:12.1.3:*:*:*:*:*:*:* Versions 12.1.3 — ·Palo Alto Networks
- cpe:2.3:o:palo_alto_networks:pan-os:12.1.2:*:*:*:*:*:*:* Versions 12.1.2 — ·Palo Alto Networks
- cpe:2.3:o:palo_alto_networks:pan-os:11.2.9:*:*:*:*:*:*:* Versions 11.2.9 — ·Palo Alto Networks
- cpe:2.3:o:palo_alto_networks:pan-os:11.2.8:*:*:*:*:*:*:* Versions 11.2.8 — ·Palo Alto Networks
- cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:*:*:*:*:*:*:* Versions 11.2.7 — ·Palo Alto Networks
- cpe:2.3:o:palo_alto_networks:pan-os:11.2.6:*:*:*:*:*:*:* Versions 11.2.6 — ·Palo Alto Networks
- cpe:2.3:o:palo_alto_networks:pan-os:11.2.5:*:*:*:*:*:*:* Versions 11.2.5 — ·Palo Alto Networks
- cpe:2.3:o:palo_alto_networks:pan-os:11.2.4:*:*:*:*:*:*:* Versions 11.2.4 — ·Palo Alto Networks
- cpe:2.3:o:palo_alto_networks:pan-os:11.2.3:*:*:*:*:*:*:* Versions 11.2.3 — ·Palo Alto Networks
- cpe:2.3:o:palo_alto_networks:pan-os:11.2.2:*:*:*:*:*:*:* Versions 11.2.2 — ·Palo Alto Networks
Show 2 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:palo_alto_networks:pan-os:11.2.1:*:*:*:*:*:*:* | 11.2.1 | — | Palo Alto Networks |
| cpe:2.3:o:palo_alto_networks:pan-os:11.2.0:*:*:*:*:*:*:* | 11.2.0 | — | Palo Alto Networks |
- cpe:2.3:o:palo_alto_networks:pan-os:11.2.1:*:*:*:*:*:*:* Versions 11.2.1 — ·Palo Alto Networks
- cpe:2.3:o:palo_alto_networks:pan-os:11.2.0:*:*:*:*:*:*:* Versions 11.2.0 — ·Palo Alto Networks
Remediation
- Fix · CNA Cloud NGFW (Palo Alto Networks) Fixed in All
- Fix · CNA PAN-OS (Palo Alto Networks) Fixed in 12.1.4, 11.2.10, 11.1.0, 10.2.0
- Fix · CNA Prisma Access (Palo Alto Networks) Fixed in All
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Palo Alto Networks Prisma Access 10.2.10-h28
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-00172 PAN-OS: Improper Validation of Terminal Server Agent CertificatePriority LOW 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-0229
- 2026-10-03 Alias added: GHSA-cpfh-q3v8-wj73
References
More Palo Alto Networks vulnerabilities
- TI-2024-08782 Expedition: Unauthenticated OS Command Injection Vulnerability Leads to Firewall Credential Disclosure KEVCVSS 4.0CRITICAL 9.9
- TI-2024-03172 PAN-OS: Arbitrary File Creation Leads to OS Command Injection Vulnerability in GlobalProtect KEVCVSS 3.1CRITICAL 10.0
- TI-2020-01936 PAN-OS: Authentication Bypass in SAML Authentication KEVCVSS 3.1CRITICAL 10.0
- TI-2017-11675 Palo Alto Networks PAN-OS before 6.1.19, 7.0.x before 7.0.19, 7.1.x before 7.1.14, and… KEVCVSS 3.1CRITICAL 9.8
- TI-2026-00239 PAN-OS: Unauthenticated user initiated Buffer Overflow Vulnerability in User-ID™ Authentication Portal KEVCVSS 4.0CRITICAL 9.3
- TI-2024-08784 Expedition: SQL Injection Leads to Firewall Admin Credential Disclosure KEVCVSS 4.0CRITICAL 9.2
Sources
- CVE-2026-0229 · CVE Program
- CVE-2026-0229 · NVD
- FIRST EPSS
- GHSA-cpfh-q3v8-wj73 · GitHub Advisory Database · CC BY 4.0
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