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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Palo Alto Networks WildFire WF-500 and WF-500-B unaffected
Version Status Constraints
12.1.0 affected < 12.1.7, 12.1.4-h5
11.2.0 affected < 11.2.11,11.2.7-h7
11.1.0 affected < 11.1.13,11.1.10-h8
10.2.0 affected < 10.2.18-h6, 10.2.16-h7, 10.2.13-h21, 10.2.10-h36, 10.2.7-h34

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

Vendors Products
Palo Alto Networks Subscribe
Wildfire Wf-500 And Wf-500-b Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://security.paloaltonetworks.com/CVE-2026-0259 cve-icon cve-icon
History

Wed, 13 May 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 13 May 2026 18:30:00 +0000

Type Values Removed Values Added
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.
Title WildFire WF-500 and WF-500-B: Arbitrary File Read and Delete Vulnerability in WildFire Appliance (WF-500, WF-500-B)
First Time appeared Palo Alto Networks
Palo Alto Networks wildfire Wf-500 And Wf-500-b
Weaknesses CWE-73
CPEs cpe:2.3:a:palo_alto_networks:wildfire_wf-500_and_wf-500-b:*:*:*:*:*:*:*:*
Vendors & Products Palo Alto Networks
Palo Alto Networks wildfire Wf-500 And Wf-500-b
References
Metrics cvssV4_0

{'score': 5, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/AU:Y/R:U/V:C/RE:M/U:Amber'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: palo_alto

Published:

Updated: 2026-05-13T18:57:18.638Z

Reserved: 2025-11-03T20:44:19.922Z

Link: CVE-2026-0259

cve-icon Vulnrichment

Updated: 2026-05-13T18:57:10.236Z

cve-icon NVD

Status : Received

Published: 2026-05-13T19:17:01.873

Modified: 2026-05-13T19:17:01.873

Link: CVE-2026-0259

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-13T19:45:03Z

Weaknesses