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Vulnerability · Published May 13, 2026 · Assigned by palo_alto

CVE-2026-0249GlobalProtect App: Certificate Validation Bypass Vulnerabilities

Medium 4.9

In plain English

A medium-severity improper certificate validation in GlobalProtect App from Palo Alto Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).

Severity (CVSS 4.0)4.9Medium
Exploit odds (30 days)0.1%top 98.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
Palo Alto Networks GlobalProtect App 6.3.0 – before 6.3.3-h9 (6.3.3-999)6.2.0 – before 6.2.8-h10 (6.2.8-948)
Palo Alto Networks GlobalProtect App 6.1.0 – before 6.1.136.0.0 – before 6.0.14
Palo Alto Networks GlobalProtect App 6.0.0 – before 6.0.13
Palo Alto Networks GlobalProtect App see references

Weakness: CWE-295 · Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber

References