CVE-2026-0259

What it is

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.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account. High risk of data exposure.

Exploit odds

0.3% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-05-13 19:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-10-26 17:10 UTC Last updatedMost recent change to the record

Details

Published

2026-05-13 19:17 UTC

Last modified

2026-10-26 17:10 UTC

Exploit probability

0.3% · EPSS, next 30 days

Weakness

CWE-73

Record status

Analyzed

Affected

• Paloaltonetworks pan-os < 10.2.7
• Paloaltonetworks pan-os < 10.2.10
• Paloaltonetworks pan-os < 10.2.13
• Paloaltonetworks pan-os < 10.2.16
• Paloaltonetworks pan-os 10.2.7
• Paloaltonetworks pan-os 10.2.10
• Paloaltonetworks pan-os 10.2.13
• Paloaltonetworks pan-os 10.2.16

Attack profile CVSS 4.0 · 5.0

Attack vector

Network

Complexity

Low

Attack requirements

None

Privileges needed

Low

User interaction

None

Confidentiality

High

Integrity

Low

Availability

None