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Medium · 5.0 CVE-2026-0259 EUVD-2026-30106GHSA-7g39-pmpc-x999

WildFire WF-500 and WF-500-B: Arbitrary File Read and Delete Vulnerability in WildFire Appliance (WF-500, WF-500-B)

Published May 13, 2026 · Updated May 13, 2026 · Assigned by palo_alto

Vendor: Palo Alto Networks Product: WildFire WF-500 and WF-500-B Category: Network devices

Description

An arbitrary File Read and Delete Vulnerability in Palo Alto Networks WildFire® WF-500 and WF-500-B appliances enables users to read sensitive information and delete arbitrary files. This vulnerability affects WF-500 and WF-500-B appliances running in the default non-FIPS configuration mode.

The WildFire Appliance (WF-500, WF-500-B) software update is now available to customers that use the WildFire Appliance (WF-500, WF-500-B) for on-premise sandboxing.

Please note that customers using the WildFire Public cloud service are NOT impacted by this vulnerability.

Affected products

VendorProductAffectedFixed
Palo Alto Networks WildFire WF-500 and WF-500-B 12.1.0 – < 12.1.7, 12.1.4-h5, 11.2.0 – < 11.2.11,11.2.7-h7, 11.1.0 – < 11.1.13,11.1.10-h8, 10.2.0 – < 10.2.18-h6, 10.2.16-h7, 10.2.13-h21, 10.2.10-h36, 10.2.7-h34 12.1.7, 12.1.4-h5

References