8.8

CVE-2026-0259: palo alto networks wildfire wf-500 and wf-500-b External Control of File Name or Path

CVSS: 8.8v3.1HighAnalyzed
Published 13-05-2026Last modified 13-05-2026
Open JSON

Vulnerability summary

CVE-2026-0259 is a high (CVSS 8.8) External Control of File Name or Path vulnerability in palo alto networks wildfire wf-500 and wf-500-b. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 25.6% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
0.34%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-05-2026
    PublishedVulnerability first disclosed.
  2. 13-05-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.34%

Chance of exploitation in the next 30 days

Percentile

26%

Versus all other CVEs

30-day change

0.00 pp

From 0.34% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.34%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Palo alto networks1 product
  • 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
Paloaltonetworks1 product
  • pan-osEOL< 10.2.7 | ≥ 10.2.8, < 10.2.10 | ≥ 10.2.11, < 10.2.13 | ≥ 10.2.14, < 10.2.16 | 10.2.7 | 10.2.7:h1 | 10.2.7:h10 | 10.2.7:h11 | 10.2.7:h12 | 10.2.7:h13 | 10.2.7:h14 | 10.2.7:h15 | 10.2.7:h16 | 10.2.7:h17 | 10.2.7:h18 | 10.2.7:h19 | 10.2.7:h2 | 10.2.7:h20 | 10.2.7:h21 | 10.2.7:h22 | 10.2.7:h23 | 10.2.7:h24 | 10.2.7:h3 | 10.2.7:h32 | 10.2.7:h4 | 10.2.7:h5 | 10.2.7:h6 | 10.2.7:h7 | 10.2.7:h8 | 10.2.7:h9 | 10.2.10 | 10.2.10:h1 | 10.2.10:h10 | 10.2.10:h11 | 10.2.10:h12 | 10.2.10:h13 | 10.2.10:h14 | 10.2.10:h17 | 10.2.10:h18 | 10.2.10:h2 | 10.2.10:h21 | 10.2.10:h27 | 10.2.10:h3 | 10.2.10:h30 | 10.2.10:h31 | 10.2.10:h4 | 10.2.10:h5 | 10.2.10:h6 | 10.2.10:h7 | 10.2.10:h8 | 10.2.13 | 10.2.13:h1 | 10.2.13:h10 | 10.2.13:h15 | 10.2.13:h16 | 10.2.13:h18 | 10.2.13:h2 | 10.2.13:h3 | 10.2.13:h4 | 10.2.13:h5 | 10.2.13:h7 | 10.2.16 | 10.2.16:h1 | 10.2.16:h4 | 10.2.16:h6 | 10.2.17 | 10.2.18 | 10.2.18:h1 | 10.2.18:h5 | ≥ 11.1.0, < 11.1.4 | ≥ 11.1.5, < 11.1.6 | ≥ 11.1.8, < 11.1.10 | ≥ 11.1.11, < 11.1.13 | 11.1.4 | 11.1.4:h1 | 11.1.4:h10 | 11.1.4:h11 | 11.1.4:h12 | 11.1.4:h13 | 11.1.4:h15 | 11.1.4:h16 | 11.1.4:h17 | 11.1.4:h18 | 11.1.4:h2 | 11.1.4:h25 | 11.1.4:h27 | 11.1.4:h3 | 11.1.4:h32 | 11.1.4:h4 | 11.1.4:h5 | 11.1.4:h6 | 11.1.4:h7 | 11.1.4:h8 | 11.1.4:h9 | 11.1.6 | 11.1.6:h1 | 11.1.6:h10 | 11.1.6:h14 | 11.1.6:h17 | 11.1.6:h18 | 11.1.6:h19 | 11.1.6:h2 | 11.1.6:h20 | 11.1.6:h21 | 11.1.6:h22 | 11.1.6:h23 | 11.1.6:h25 | 11.1.6:h29 | 11.1.6:h3 | 11.1.6:h4 | 11.1.6:h5 | 11.1.6:h6 | 11.1.6:h7 | 11.1.7 | 11.1.7:h1 | 11.1.7:h2 | 11.1.7:h4 | 11.1.10 | 11.1.10:h1 | 11.1.10:h10 | 11.1.10:h12 | 11.1.10:h21 | 11.1.10:h4 | 11.1.10:h5 | 11.1.10:h7 | 11.1.10:h9 | 11.1.13 | 11.1.13:h1 | 11.1.13:h2 | 11.1.13:h3 | 11.1.14 | ≥ 11.2.0, < 11.2.4 | ≥ 11.2.5, < 11.2.7 | ≥ 11.2.8, < 11.2.10 | 11.2.4 | 11.2.4:h1 | 11.2.4:h10 | 11.2.4:h11 | 11.2.4:h12 | 11.2.4:h14 | 11.2.4:h15 | 11.2.4:h2 | 11.2.4:h3 | 11.2.4:h4 | 11.2.4:h5 | 11.2.4:h6 | 11.2.4:h7 | 11.2.4:h8 | 11.2.4:h9 | 11.2.7 | 11.2.7:h1 | 11.2.7:h10 | 11.2.7:h11 | 11.2.7:h12 | 11.2.7:h2 | 11.2.7:h3 | 11.2.7:h4 | 11.2.7:h7 | 11.2.7:h8 | 11.2.10 | 11.2.10:h1 | 11.2.10:h2 | 11.2.10:h3 | 11.2.10:h4 | 11.2.10:h5 | 11.2.11 | ≥ 12.1.0, < 12.1.4 | ≥ 12.1.5, < 12.1.7 | 12.1.4 | 12.1.4:h2 | 12.1.4:h3

2 vendors · 2 products

References

1 links