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Advisory severityHigh8.7Vendor: MediumPalo Alto Networks

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

This high-severity Palo Alto Networks advisory covers CVE-2026-0287 affecting Cloud NGFW, PAN-OS, Prisma Access.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-0287 Source published

VulniPulse record published Record updated

CVE-2026-0287
Affected products & platforms
Palo Alto NetworksPAN-OSFirewallPrisma AccessCloud NGFWPAN-OS / Panorama
Open source advisory

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Summary

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 named by the advisory: Cloud NGFW; Prisma Access.

Affected versions
  • Cloud NGFW All
  • PAN-OS < 12.1.4-h8
  • PAN-OS < 11.2.4-h20
  • PAN-OS < 11.1.4-h35
  • PAN-OS < 10.2.7-h36
  • Prisma Access < 11.2.7-h18
  • Prisma Access < 10.2.10-h39

Official advisory · high-confidence parse· fetched 27 days ago·verify at source

Fixed versions
  • PAN-OS >= 12.1.4-h8
  • PAN-OS >= 12.1.7-h2
  • PAN-OS >= 12.1.8
  • PAN-OS >= 11.2.4-h20
  • PAN-OS >= 11.2.7-h18
  • PAN-OS >= 11.2.10-h12
  • PAN-OS >= 11.2.13
  • PAN-OS >= 11.1.4-h35
  • PAN-OS >= 11.1.6-h35
  • PAN-OS >= 11.1.7-h8
  • PAN-OS >= 11.1.10-h30
  • PAN-OS >= 11.1.13-h9
  • PAN-OS >= 11.1.16
  • PAN-OS >= 10.2.7-h36
  • PAN-OS >= 10.2.10-h39
  • PAN-OS >= 10.2.13-h23
  • PAN-OS >= 10.2.16-h9
  • PAN-OS >= 10.2.18-h8
  • Prisma Access >= 11.2.7-h18
  • Prisma Access >= 10.2.10-h39

Official advisory · high-confidence parse· fetched 27 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Upgrade to a fixed release: PAN-OS >= 12.1.4-h8; PAN-OS >= 12.1.7-h2; PAN-OS >= 12.1.8; PAN-OS >= 11.2.4-h20; ….
Workaround status
  • No known workarounds exist for this issue.

Official advisory · high-confidence parse· fetched 27 days ago·verify at source

Discussion(0)

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