Palo Alto Networks Security Advisories / CVE-2017-9458

CVE-2017-9458 XML External Entity (XXE) 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


A vulnerability exists in PAN-OS’s GlobalProtect internal and external gateway interface that could allow for XML External Entity (XXE) attack. PAN-OS does not properly parse XML input. (Ref # PAN-75688 / CVE-2017-9458)

Successful exploitation of this issue may allow disclosure of information, denial of service or server side request forgery.

This issue affects PAN-OS 6.1.17 and earlier, PAN-OS 7.0.16 and earlier, PAN-OS 7.1.11 and earlier, PAN-OS 8.0.2 and earlier

Product Status

PAN-OS 8.0<= 8.0.2>= 8.0.3
PAN-OS 7.1<= 7.1.11>= 7.1.12
PAN-OS 7.0<= 7.0.16>= 7.0.17
PAN-OS 6.1<= 6.1.17>= 6.1.18


CVSSv3.1 Base Score:9.8 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Weakness Type

CWE-611 Improper Restriction of XML External Entity Reference


PAN-OS 6.1.18 and later, PAN-OS 7.0.17 and later, PAN-OS 7.1.12 and later, PAN-OS 8.0.3 and later

Workarounds and Mitigations

Customers that have not configured GlobalProtect are not affected by this issue.


Palo Alto Networks would like to thank Alejandro Iacobelli and Nicolas Videla from Mercadolibre for reporting (CVE-2017-9458).
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