What’s Vulnerable › Vulnerabilities

CVE-2026-0318: PAN-OS: Denial of Service (DoS) on Panorama

• Severity: medium (CVSS 4.6 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-14 · updated 2026-10-15
• Weakness: CWE-754

Description

A stack-based buffer overflow vulnerability in the log processing functionality of Palo Alto Networks PAN-OS® software on Panorama enables an attacker to cause a denial of service (DoS) condition. Repeated attempts to trigger this condition result in the Panorama entering maintenance mode. Cloud NGFW, Prisma® Access, and standalone PAN-OS firewalls are not affected by this vulnerability.

Affected products

• Palo Alto Networks PAN-OS: from 12.2.0 before 12.2.4; from 12.1.0 before 12.1.10-h2; from 11.2.0 before 11.2.16; from 11.1.0 before 11.1.16-h3 — fixed in 11.1.16-h3, 11.2.16, 12.1.10-h2, 12.2.4

How to fix

Upgrade to a fixed version: Palo Alto Networks PAN-OS 11.1.16-h3, 11.2.16, 12.1.10-h2, 12.2.4. Check the vendor advisory for mitigations.

In the news

• CVE-2026-0318 PAN-OS: Denial of Service (DoS) on Panorama (Severity: MEDIUM)

References

• https://security.paloaltonetworks.com/CVE-2026-0318

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