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Vulnerability · Published Jul 9, 2026 · Assigned by palo_alto

CVE-2026-0287PAN-OS: Denial of Service Vulnerabilities in Network Traffic Processing

Medium 6.6

In plain English

A medium-severity security flaw in Cloud NGFW 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 0.6% (higher than 50% of all known vulnerabilities).

Severity (CVSS 4.0)6.6Medium
Exploit odds (30 days)0.6%top 50.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Multiple denial of service vulnerabilities in Palo Alto Networks PAN-OS® software allow an unauthenticated attacker with network access to cause a denial of service (DoS) condition by sending specially crafted network traffic to or through a dataplane interface. Repeated attempts to trigger this condition result in the firewall entering maintenance mode. Panorama is not impacted by these vulnerabilities.

Affected products (as reported)

VendorProductVersions
Palo Alto Networks Cloud NGFW All
Palo Alto Networks PAN-OS 12.1.0 – before 12.1.4-h811.2.0 – before 11.2.4-h2011.1.0 – before 11.1.4-h3510.2.0 – before 10.2.7-h36
Palo Alto Networks Prisma Access 11.2.0 – before 11.2.7-h1810.2.0 – before 10.2.10-h39

Weakness: CWE-754 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:C/RE:M/U:Amber

References