PAN-OS: Firewall Denial of Service (DoS) Using a Specially Crafted Packet
- Severity
- High7.5CVSS 3.1, High
- Known exploited
- Not listed
- Exploit prediction
- 0.48%
- Published
- 14 Nov 2024Updated 17 Jun 2026 · Last verified 29 Sept 2026
Known remediation
Fixed releases per branch, as the vendor states them. Patcharo never infers a fix.
Palo Alto Networks PAN-OS
Vendor advisory- 11.011.0.5
- 10.210.2.4-h6
- 10.110.1.14
Workaround / Vendor remediation
Vendor remediation · PAN-OS
This issue is fixed in PAN-OS 10.1.14, PAN-OS 10.2.4-h6, PAN-OS 10.2.5, PAN-OS 11.0.5, and all later PAN-OS versions.
Description
Title, description and vendor guidance are quoted from the source records.
A null pointer dereference vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to stop a core system service on the firewall by sending a crafted packet through the data plane that causes a denial of service (DoS) condition. Repeated attempts to trigger this condition result in the firewall entering maintenance mode.
Weakness: CWE-476
Known exploited
Not listed in CISA KEV as of the last check.
Exploit prediction
0.48% probability of exploitation in the next 30 days (percentile 39%).
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
What the source states, per branch
Versions matched by Patcharo
Palo Alto Networks PAN-OSSource: Palo Alto Networks (CVE record)
| Branch | Affected | Fixed in |
|---|---|---|
| 11.0 | >= 11.0.0, < 11.0.5 | 11.0.5 |
| 10.2 | >= 10.2.0, < 10.2.4-h6 | 10.2.4-h6 |
| 10.1 | >= 10.1.0, < 10.1.14 | 10.1.14 |
Versions not listed are stated unaffected by the vendor.
References
Provenance
Every fact on this page comes from the sources below. Nothing is written by an AI.
- Palo Alto Networks (CVE record)
- Palo Alto Networks (CVE record) · 29 Sept 2026 at 03:17 UTC · Parser patcharo-cve5/1.1.0
- NVD
- NVD · 27 Sept 2026 at 23:44 UTC · Parser patcharo-nvd/1.0.0
- FIRST EPSS
- FIRST EPSS · 30 Sept 2026 at 00:17 UTC · Parser patcharo-epss/1.0.0
Last verified: 29 Sept 2026 at 03:17 UTC