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CVE-2026-0284: PAN-OS: XML Injection Vulnerability in Large Scale VPN (LSVPN)

• Severity: critical (CVSS 9.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-09 · updated 2026-08-11
• Weakness: CWE-74

Description

An XML injection vulnerability in the Large Scale VPN (LSVPN) functionality of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to inject malicious XML content, potentially leading to information disclosure or corruption of internal LSVPN satellite data. Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.

Affected products

• Palo Alto Networks PAN-OS: from 10.2.0 before 10.2.7; from 10.2.8 before 10.2.10; from 10.2.11 before 10.2.13; from 10.2.14 before 10.2.16; from 11.1.0 before 11.1.4; from 11.1.8 before 11.1.10 — fixed in 10.2.10, 10.2.13, 10.2.16, 10.2.7, 11.1.10, 11.1.13

How to fix

Upgrade to a fixed version: Palo Alto Networks PAN-OS 10.2.10, 10.2.13, 10.2.16, 10.2.7. Check the vendor advisory for mitigations.

References

• https://security.paloaltonetworks.com/CVE-2026-0284
• https://cert-portal.siemens.com/productcert/html/ssa-104023.html

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