SB2026051512 - Improper Certificate Validation in Palo Alto GlobalProtect App
Published: May 15, 2026
Security Bulletin ID
SB2026051512
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Certificate Validation (CVE-ID: CVE-2026-0249)
CWE-ID: CWE-295 - Improper Certificate Validation
CVSSv4: 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/U:Green
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to improper certificate validation. A remote attacker on the local network can intercept encrypted communications and redirect traffic to an unauthorized server and facilitate the installation of malicious software.
Remediation
Install update from vendor's website.