PAN-OS: Firewall Denial-of-Service (DoS) in the Web-Proxy Feature via a Burst of Maliciously Crafted Packets
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- 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 missing exception check in Palo Alto Networks PAN-OS® software with the web proxy feature enabled allows an unauthenticated attacker to send a burst of maliciously crafted packets that causes the firewall to become unresponsive and eventually reboot. Repeated successful attempts to trigger this condition will cause the firewall to enter maintenance mode. This issue does not affect Cloud NGFW or Prisma Access.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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 | 11.2.0 to before 11.2.5; 11.1.0 to before 11.1.6-h1 | 11.2.5, 11.1.6-h1, 10.2.0, 10.1.0 | 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 11.2.0 to before 11.2.5; 11.1.0 to before 11.1.6-h1 Fixed in 11.2.5, 11.1.6-h1, 10.2.0, 10.1.0 Patch available CNA
- Prisma Access VendorPalo Alto Networks Affected — Fixed in All Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* | 11.1.0 to before 11.1.6 | Vulnerable | CyberArk Software, a Palo Alto Networks Company |
| cpe:2.3:o:paloaltonetworks:pan-os:*:h1:*:*:*:*:*:* | 11.2.0 to before 11.2.5 | Vulnerable | CyberArk Software, a Palo Alto Networks Company |
| cpe:2.3:o:paloaltonetworks:pan-os:11.1.7:-:*:*:*:*:*:* | 11.1.7 | Vulnerable | CyberArk Software, a Palo Alto Networks Company |
| cpe:2.3:o:paloaltonetworks:pan-os:11.1.7:h1:*:*:*:*:*:* | 11.1.7 h1 | Vulnerable | CyberArk Software, a Palo Alto Networks Company |
- cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* Versions 11.1.0 to before 11.1.6 Vulnerable ·CyberArk Software, a Palo Alto Networks Company
- cpe:2.3:o:paloaltonetworks:pan-os:*:h1:*:*:*:*:*:* Versions 11.2.0 to before 11.2.5 Vulnerable ·CyberArk Software, a Palo Alto Networks Company
- cpe:2.3:o:paloaltonetworks:pan-os:11.1.7:-:*:*:*:*:*:* Versions 11.1.7 Vulnerable ·CyberArk Software, a Palo Alto Networks Company
- cpe:2.3:o:paloaltonetworks:pan-os:11.1.7:h1:*:*:*:*:*:* Versions 11.1.7 h1 Vulnerable ·CyberArk Software, a Palo Alto Networks Company
Remediation
- Fix · CNA Cloud NGFW (Palo Alto Networks) Fixed in All
- Fix · CNA PAN-OS (Palo Alto Networks) Fixed in 11.2.5, 11.1.6-h1, 10.2.0, 10.1.0
- Fix · CNA Prisma Access (Palo Alto Networks) Fixed in All
Timeline
- 2026-10-02 Threatist record created from CVE-2025-0130
- 2026-10-03 Alias added: GHSA-6whp-h3pf-v3x5
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-2025-0130 · CVE Program
- CVE-2025-0130 · NVD
- FIRST EPSS
- GHSA-6whp-h3pf-v3x5 · GitHub Advisory Database · CC BY 4.0
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