Vulnerability in Palo Alto Networks Globalprotect App
CVE-2026-0249
Multiple improper certificate validation vulnerabilities in the Palo Alto Networks GlobalProtect™ app enables an attacker to intercept encrypted communications and potentially compromise the endpoint. This can enable a local non-administrative operating system user or an attacker on the same subnet to redirect traffic to an unauthorized server and facilitate the installation of malicious software. The GlobalProtect app on Linux, Windows, iOS and GlobalProtect UWP app are not affected.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.001 (1.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
- Palo Alto Networks Globalprotect App — versions 6.3.0, 6.2.0, 6.1.0
- Paloaltonetworks Globalprotect — versions 6.2.8, 6.3.3
Weakness classification (CWE)
References
- security.paloaltonetworks.com/CVE-2026-0249 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-0249?
- CVE-2026-0249 is a medium-severity vulnerability in Palo Alto Networks Globalprotect App, classified under Improper Certificate Validation. CVSS score: 6.5/10. Published 2026-05-13.
- How severe is CVE-2026-0249?
- Medium severity. CVSS v3 base score is 6.5 out of 10.