Palo Alto Networks Security Advisories / CVE-2019-1580

CVE-2019-1580 Memory Corruption in PAN-OS

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 memory corruption vulnerability in PAN-OS (Ref: # PAN-123603/CVE-2019-1580).

Successful exploitation will allow a remote, unauthenticated user to craft a message to Secure Shell Daemon (SSHD) and corrupt arbitrary memory.

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-119 Improper Restriction of Operations within the Bounds of a Memory Buffer


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

These issues affect the management interface of PAN-OS and are strongly mitigated by following best practices for securing the PAN-OS management interface. Our best practices guidelines reduce the exposure of the management interface to potential attackers. Please review the Best Practices for Securing Administrative Access in the PAN-OS 9.0 technical documentation, available at:


This issue was discovered by Nicholas Newsom of Palo Alto Networks during internal security review.
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