Palo Alto Networks Security Advisories / CVE-2019-1581

CVE-2019-1581 Remote code execution in PAN-OS SSH management interface

Severity 9.8 · CRITICAL
Attack Vector NETWORK
Attack Complexity LOW
Confidentiality Impact HIGH
Privileges Required NONE
Integrity Impact HIGH
User Interaction NONE
Availability Impact HIGH


Palo Alto Networks is aware of a remote code execution vulnerability in the PAN-OS SSH device management interface that can lead to unauthenticated remote users with network access to the SSH management interface gaining root access to PAN-OS. (Ref: # PAN-123564/ CVE-2019-1581).

Successful exploitation will allow a remote, unauthenticated user to execute arbitrary code by crafting and sending a malicious message to the SSH device management interface.

This issue affects PAN-OS 7.1.24 and earlier, PAN-OS 8.0.19 and earlier, PAN-OS 8.1.9 and earlier, and PAN-OS 9.0.3 and earlier.

Product Status

PAN-OS 9.0<= 9.0.3>= 9.0.3-h3
PAN-OS 8.1<= 8.1.9>= 8.1.9-h4
PAN-OS 8.0<= 8.0.19>= 8.0.19-h1
PAN-OS 7.1<= 7.1.24>= 7.1.24-h1

Severity: CRITICAL

CVSSv3.1 Base Score: 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Weakness Type

CWE-20 Improper Input Validation


PAN-OS 7.1.24-h1 and later, PAN-OS 8.0.19-h1 and later, PAN-OS 8.1.9-h4 and later, and PAN-OS 9.0.3-h3 and later.

Workarounds and Mitigations

This issue affects the SSH management interface of PAN-OS and is strongly mitigated by following best practices for securing the PAN-OS management interfaces. Our best practices guidelines reduce the exposure of device management interfaces to potential attacke...


The UK's National Cyber Security Centre (NCSC)
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