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

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.

Timeline

Scores

EPSS (exploitation in 30 days)

0.62% · top 50% of all CVEs (15 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.6.

Affected products

• Palo Alto Networks · Cloud NGFW

  • affected All

• Palo Alto Networks · PAN-OS

  • affected 12.1.0 – < 12.1.4-h8
  • affected 11.2.0 – < 11.2.4-h20
  • affected 11.1.0 – < 11.1.4-h35
  • affected 10.2.0 – < 10.2.7-h36

• Palo Alto Networks · Prisma Access

  • affected 11.2.0 – < 11.2.7-h18
  • affected 10.2.0 – < 10.2.10-h39

What to do

Solution: VersionMinor Version RangeSuggested SolutionCloud NGFW Customers who prefer to upgrade can work with Palo Alto Networks support to schedule an on-demand software upgrade.PAN-OS 12.112.1.5 through 12.1.7-h*Upgrade to 12.1.7-h2 or 12.1.8 or later. 12.1.2 through 12.1.4-h*Upgrade to 12.1.4-h8 or 12.1.8 or later.PAN-OS 11.211.2.11 through 11.2.12Upgrade to 11.2.13 or later. 11.2.8 through 11.2.10-h*Upgrade to 11.2.10-h12 or 11.2.13 or later. 11.2.5 through 11.2.7-h*Upgrade to 11.2.7-h18 or 11.2.13 or later. 11.2.0 through 11.2.4-h*Upgrade to 11.2.4-h20 or 11.2.13 or later.PAN-OS 11.111.1.14 through 11.1.15Upgrade to 11.1.16 or later. 11.1.11 through 11.1.13-h*Upgrade to 11.1.13-h9 or 11.1.16 or later. 11.1.8 through 11.1.10-h*Upgrade to 11.1.10-h30 or 11.1.16 or later. 11.1.7 through 11.1.7-h*Upgrade to 11.1.7-h8 or 11.1.16 or later. 11.1.5 through 11.1.6-h*Upgrade to 11.1.6-h35 or 11.1.16 or later. 11.1.0 through 11.1.4-h*Upgrade to 11.1.4-h35 or 11.1.16 or later.PAN-OS 10.210.2.17 through 10.2.18-h*Upgrade to 10.2.18-h8 or later. 10.2.14 through 10.2.16-h*Upgrade to 10.2.16-h9 or later. 10.2.11 through 10.2.13-h*Upgrade to 10.2.13-h23 or later. 10.2.8 through 10.2.10-h*Upgrade to 10.2.10-h39 or later. 10.2.0 through 10.2.7-h*Upgrade to 10.2.7-h36 or later.All other older unsupported PAN-OS versions Upgrade to a supported fixed version.Prisma Access 11.211.2.0 through 11.2.7Upgrade to 11.2.7-h18 or later.*Prisma Access 10.210.2.0 through 10.2.10Upgrade to 10.2.10-h39 or later.* * See the note under Product Status for information regarding Cloud NGFW and Prisma Access upgrades.

Workaround: No known workarounds exist for this issue.

Exploitation: Palo Alto Networks is not aware of any malicious exploitation of this issue.

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• EUVD EUVD-2026-42672 (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-0287](https://cveledger.app/badge/CVE-2026-0287.svg)](https://cveledger.app/cve/CVE-2026-0287)

Record last updated 10 Nov 2026, 12:40 UTC.