CVE-2026-0227

Published: Jan 15, 2026Modified: Jun 17, 2026

6.6

Vector

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

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:AmberShow less

Source: psirt@paloaltonetworks.com (Secondary)

Description

A vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to cause a denial of service (DoS) to the firewall. Repeated attempts to trigger this issue results in the firewall entering into maintenance mode.

Affected (100)

Products: Paloaltonetworks: Pan Os, Prisma Access

Paloaltonetworks

2 products

Pan Os

Prisma Access

Configuration A

99 vulnerable

Vulnerable Software	Affected Versions
Paloaltonetworks Pan Os	From 10.1.0 to 10.1.14
Paloaltonetworks Pan Os	From 10.2.0 to 10.2.7
Paloaltonetworks Pan Os	From 10.2.11 to 10.2.13
Paloaltonetworks Pan Os	From 10.2.14 to 10.2.16
Paloaltonetworks Pan Os	From 10.2.8 to 10.2.10
Paloaltonetworks Pan Os	From 11.1.0 to 11.1.4
Paloaltonetworks Pan Os	From 11.1.11 to 11.1.13
Paloaltonetworks Pan Os	From 11.1.5 to 11.1.6
Paloaltonetworks Pan Os	From 11.1.7 to 11.1.10
Paloaltonetworks Pan Os	From 11.2.0 to 11.2.4
Paloaltonetworks Pan Os	From 11.2.5 to 11.2.7
Paloaltonetworks Pan Os	From 11.2.8 to 11.2.10
Paloaltonetworks Pan Os	Version 10.1.14
Paloaltonetworks Pan Os	Version 10.1.14 h10
Paloaltonetworks Pan Os	Version 10.1.14 h11
Paloaltonetworks Pan Os	Version 10.1.14 h13
Paloaltonetworks Pan Os	Version 10.1.14 h14
Paloaltonetworks Pan Os	Version 10.1.14 h15
Paloaltonetworks Pan Os	Version 10.1.14 h16
Paloaltonetworks Pan Os	Version 10.1.14 h19
Paloaltonetworks Pan Os	Version 10.1.14 h2
Paloaltonetworks Pan Os	Version 10.1.14 h4
Paloaltonetworks Pan Os	Version 10.1.14 h6
Paloaltonetworks Pan Os	Version 10.1.14 h8
Paloaltonetworks Pan Os	Version 10.1.14 h9
Paloaltonetworks Pan Os	Version 10.2.10
Paloaltonetworks Pan Os	Version 10.2.13
Paloaltonetworks Pan Os	Version 10.2.13 h10
Paloaltonetworks Pan Os	Version 10.2.13 h16
Paloaltonetworks Pan Os	Version 10.2.13 h1
Paloaltonetworks Pan Os	Version 10.2.13 h2
Paloaltonetworks Pan Os	Version 10.2.13 h3
Paloaltonetworks Pan Os	Version 10.2.13 h4
Paloaltonetworks Pan Os	Version 10.2.13 h5
Paloaltonetworks Pan Os	Version 10.2.13 h7
Paloaltonetworks Pan Os	Version 10.2.16
Paloaltonetworks Pan Os	Version 10.2.16 h1
Paloaltonetworks Pan Os	Version 10.2.16 h4
Paloaltonetworks Pan Os	Version 10.2.17
Paloaltonetworks Pan Os	Version 10.2.18
Paloaltonetworks Pan Os	Version 10.2.7
Paloaltonetworks Pan Os	Version 10.2.7 h12
Paloaltonetworks Pan Os	Version 10.2.7 h16
Paloaltonetworks Pan Os	Version 10.2.7 h18
Paloaltonetworks Pan Os	Version 10.2.7 h19
Paloaltonetworks Pan Os	Version 10.2.7 h1
Paloaltonetworks Pan Os	Version 10.2.7 h21
Paloaltonetworks Pan Os	Version 10.2.7 h24
Paloaltonetworks Pan Os	Version 10.2.7 h3
Paloaltonetworks Pan Os	Version 10.2.7 h6
Paloaltonetworks Pan Os	Version 10.2.7 h8
Paloaltonetworks Pan Os	Version 11.1.10
Paloaltonetworks Pan Os	Version 11.1.10 h1
Paloaltonetworks Pan Os	Version 11.1.10 h4
Paloaltonetworks Pan Os	Version 11.1.10 h5
Paloaltonetworks Pan Os	Version 11.1.10 h7
Paloaltonetworks Pan Os	Version 11.1.4
Paloaltonetworks Pan Os	Version 11.1.4 h13
Paloaltonetworks Pan Os	Version 11.1.4 h15
Paloaltonetworks Pan Os	Version 11.1.4 h16
Paloaltonetworks Pan Os	Version 11.1.4 h17
Paloaltonetworks Pan Os	Version 11.1.4 h18
Paloaltonetworks Pan Os	Version 11.1.4 h1
Paloaltonetworks Pan Os	Version 11.1.4 h25
Paloaltonetworks Pan Os	Version 11.1.4 h4
Paloaltonetworks Pan Os	Version 11.1.4 h7
Paloaltonetworks Pan Os	Version 11.1.4 h9
Paloaltonetworks Pan Os	Version 11.1.6
Paloaltonetworks Pan Os	Version 11.1.6 h10
Paloaltonetworks Pan Os	Version 11.1.6 h14
Paloaltonetworks Pan Os	Version 11.1.6 h17
Paloaltonetworks Pan Os	Version 11.1.6 h19
Paloaltonetworks Pan Os	Version 11.1.6 h1
Paloaltonetworks Pan Os	Version 11.1.6 h20
Paloaltonetworks Pan Os	Version 11.1.6 h21
Paloaltonetworks Pan Os	Version 11.1.6 h22
Paloaltonetworks Pan Os	Version 11.1.6 h3
Paloaltonetworks Pan Os	Version 11.1.6 h4
Paloaltonetworks Pan Os	Version 11.1.6 h5
Paloaltonetworks Pan Os	Version 11.1.6 h6
Paloaltonetworks Pan Os	Version 11.1.6 h7
Paloaltonetworks Pan Os	Version 11.2.10
Paloaltonetworks Pan Os	Version 11.2.10 h1
Paloaltonetworks Pan Os	Version 11.2.4
Paloaltonetworks Pan Os	Version 11.2.4 h10
Paloaltonetworks Pan Os	Version 11.2.4 h11
Paloaltonetworks Pan Os	Version 11.2.4 h12
Paloaltonetworks Pan Os	Version 11.2.4 h14
Paloaltonetworks Pan Os	Version 11.2.4 h1
Paloaltonetworks Pan Os	Version 11.2.4 h2
Paloaltonetworks Pan Os	Version 11.2.4 h4
Paloaltonetworks Pan Os	Version 11.2.4 h5
Paloaltonetworks Pan Os	Version 11.2.4 h6
Paloaltonetworks Pan Os	Version 11.2.4 h7
Paloaltonetworks Pan Os	Version 11.2.4 h8
Paloaltonetworks Pan Os	Version 11.2.4 h9
Paloaltonetworks Pan Os	Version 12.1.2
Paloaltonetworks Pan Os	Version 12.1.3
Paloaltonetworks Pan Os	Version 12.1.3 h1

Configuration B

1 vulnerable · 21 platform

Vulnerable Software	Affected Versions
Paloaltonetworks Prisma Access	All versions

Running on/with	Platform Versions
Paloaltonetworks Pan Os	From 10.2.0 to 10.2.10
Paloaltonetworks Pan Os	From 11.2.0 to 11.2.7
Paloaltonetworks Pan Os	Version 10.2.10 h10
Paloaltonetworks Pan Os	Version 10.2.10 h12
Paloaltonetworks Pan Os	Version 10.2.10 h14
Paloaltonetworks Pan Os	Version 10.2.10 h17
Paloaltonetworks Pan Os	Version 10.2.10 h18
Paloaltonetworks Pan Os	Version 10.2.10 h21
Paloaltonetworks Pan Os	Version 10.2.10 h27
Paloaltonetworks Pan Os	Version 10.2.10 h2
Paloaltonetworks Pan Os	Version 10.2.10 h3
Paloaltonetworks Pan Os	Version 10.2.10 h4
Paloaltonetworks Pan Os	Version 10.2.10 h5
Paloaltonetworks Pan Os	Version 10.2.10 h7
Paloaltonetworks Pan Os	Version 10.2.10 h9
Paloaltonetworks Pan Os	Version 11.2.7
Paloaltonetworks Pan Os	Version 11.2.7 h1
Paloaltonetworks Pan Os	Version 11.2.7 h2
Paloaltonetworks Pan Os	Version 11.2.7 h3
Paloaltonetworks Pan Os	Version 11.2.7 h4
Paloaltonetworks Pan Os	Version 11.2.7 h7

Related CWEs

CWE-754

Improper Check for Unusual or Exceptional Conditions

The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.

References (1)

https://security.paloaltonetworks.com/CVE-2026-0227

Source: psirt@paloaltonetworks.com

Vendor Advisory

Timeline

No history available yet.