CVE-2026-0287: PAN-OS: Denial of Service Vulnerabilities in Network Traffic Processing (Severity: MEDIUM)

Published Jul 8, 2026
·
Updated

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 Software

205 affected componentsFixes available
Palo Alto Networks PAN-OS<12.1.4-h8, =12.1.0, <11.2.4-h20, =11.2.0, <11.1.4-h35, =11.1.0, <10.2.7-h36, =10.2.0
12.1.4-h812.1.7-h212.1.811.2.4-h2011.2.7-h1811.2.10-h1211.2.1311.1.4-h3511.1.6-h3511.1.7-h811.1.10-h3011.1.13-h911.1.1610.2.7-h3610.2.10-h3910.2.13-h2310.2.16-h910.2.18-h8
Palo Alto Networks Prisma Access<11.2.7-h18, =11.2.0, <10.2.10-h39, =10.2.0
11.2.7-h1810.2.10-h39
Palo Alto Networks PAN-OS>=10.2.0<10.2.7
Palo Alto Networks PAN-OS>=10.2.8<10.2.10
Palo Alto Networks PAN-OS>=10.2.11<10.2.13
Palo Alto Networks PAN-OS>=10.2.14<10.2.16
Palo Alto Networks PAN-OS=10.2.7
Palo Alto Networks PAN-OS=10.2.7-h1
Palo Alto Networks PAN-OS=10.2.7-h10
Palo Alto Networks PAN-OS=10.2.7-h11
Palo Alto Networks PAN-OS=10.2.7-h12
Palo Alto Networks PAN-OS=10.2.7-h13
Palo Alto Networks PAN-OS=10.2.7-h14
Palo Alto Networks PAN-OS=10.2.7-h15
Palo Alto Networks PAN-OS=10.2.7-h16
Palo Alto Networks PAN-OS=10.2.7-h17
Palo Alto Networks PAN-OS=10.2.7-h18
Palo Alto Networks PAN-OS=10.2.7-h19
Palo Alto Networks PAN-OS=10.2.7-h2
Palo Alto Networks PAN-OS=10.2.7-h20
Palo Alto Networks PAN-OS=10.2.7-h21
Palo Alto Networks PAN-OS=10.2.7-h22
Palo Alto Networks PAN-OS=10.2.7-h23
Palo Alto Networks PAN-OS=10.2.7-h24
Palo Alto Networks PAN-OS=10.2.7-h3
Palo Alto Networks PAN-OS=10.2.7-h32
Palo Alto Networks PAN-OS=10.2.7-h34
Palo Alto Networks PAN-OS=10.2.7-h35
Palo Alto Networks PAN-OS=10.2.7-h4
Palo Alto Networks PAN-OS=10.2.7-h5
Palo Alto Networks PAN-OS=10.2.7-h6
Palo Alto Networks PAN-OS=10.2.7-h7
Palo Alto Networks PAN-OS=10.2.7-h8
Palo Alto Networks PAN-OS=10.2.7-h9
Palo Alto Networks PAN-OS=10.2.10
Palo Alto Networks PAN-OS=10.2.10-h1
Palo Alto Networks PAN-OS=10.2.10-h10
Palo Alto Networks PAN-OS=10.2.10-h11
Palo Alto Networks PAN-OS=10.2.10-h12
Palo Alto Networks PAN-OS=10.2.10-h13
Palo Alto Networks PAN-OS=10.2.10-h14
Palo Alto Networks PAN-OS=10.2.10-h17
Palo Alto Networks PAN-OS=10.2.10-h18
Palo Alto Networks PAN-OS=10.2.10-h2
Palo Alto Networks PAN-OS=10.2.10-h21
Palo Alto Networks PAN-OS=10.2.10-h27
Palo Alto Networks PAN-OS=10.2.10-h3
Palo Alto Networks PAN-OS=10.2.10-h30
Palo Alto Networks PAN-OS=10.2.10-h31
Palo Alto Networks PAN-OS=10.2.10-h36
Palo Alto Networks PAN-OS=10.2.10-h37
Palo Alto Networks PAN-OS=10.2.10-h4
Palo Alto Networks PAN-OS=10.2.10-h5
Palo Alto Networks PAN-OS=10.2.10-h6
Palo Alto Networks PAN-OS=10.2.10-h7
Palo Alto Networks PAN-OS=10.2.13
Palo Alto Networks PAN-OS=10.2.13-h1
Palo Alto Networks PAN-OS=10.2.13-h10
Palo Alto Networks PAN-OS=10.2.13-h15
Palo Alto Networks PAN-OS=10.2.13-h16
Palo Alto Networks PAN-OS=10.2.13-h18
Palo Alto Networks PAN-OS=10.2.13-h2
Palo Alto Networks PAN-OS=10.2.13-h21
Palo Alto Networks PAN-OS=10.2.13-h22
Palo Alto Networks PAN-OS=10.2.13-h3
Palo Alto Networks PAN-OS=10.2.13-h4
Palo Alto Networks PAN-OS=10.2.13-h5
Palo Alto Networks PAN-OS=10.2.13-h7
Palo Alto Networks PAN-OS=10.2.16
Palo Alto Networks PAN-OS=10.2.16-h1
Palo Alto Networks PAN-OS=10.2.16-h4
Palo Alto Networks PAN-OS=10.2.16-h6
Palo Alto Networks PAN-OS=10.2.16-h7
Palo Alto Networks PAN-OS=10.2.16-h8
Palo Alto Networks PAN-OS=10.2.17
Palo Alto Networks PAN-OS=10.2.18-h1
Palo Alto Networks PAN-OS=10.2.18-h5
Palo Alto Networks PAN-OS=10.2.18-h6
Palo Alto Networks PAN-OS=10.2.18-h7
Palo Alto Networks PAN-OS>=11.1.0<11.1.4
Palo Alto Networks PAN-OS>=11.1.8<11.1.10
Palo Alto Networks PAN-OS>=11.1.11<11.1.13
Palo Alto Networks PAN-OS>=11.1.14<11.1.16
Palo Alto Networks PAN-OS=11.1.4
Palo Alto Networks PAN-OS=11.1.4-h1
Palo Alto Networks PAN-OS=11.1.4-h10
Palo Alto Networks PAN-OS=11.1.4-h11
Palo Alto Networks PAN-OS=11.1.4-h12
Palo Alto Networks PAN-OS=11.1.4-h13
Palo Alto Networks PAN-OS=11.1.4-h15
Palo Alto Networks PAN-OS=11.1.4-h17
Palo Alto Networks PAN-OS=11.1.4-h18
Palo Alto Networks PAN-OS=11.1.4-h2
Palo Alto Networks PAN-OS=11.1.4-h25
Palo Alto Networks PAN-OS=11.1.4-h27
Palo Alto Networks PAN-OS=11.1.4-h3
Palo Alto Networks PAN-OS=11.1.4-h32
Palo Alto Networks PAN-OS=11.1.4-h33
Palo Alto Networks PAN-OS=11.1.4-h34
Palo Alto Networks PAN-OS=11.1.4-h4
Palo Alto Networks PAN-OS=11.1.4-h5
Palo Alto Networks PAN-OS=11.1.4-h6
Palo Alto Networks PAN-OS=11.1.4-h7
Palo Alto Networks PAN-OS=11.1.4-h8
Palo Alto Networks PAN-OS=11.1.4-h9
Palo Alto Networks PAN-OS=11.1.5
Palo Alto Networks PAN-OS=11.1.6
Palo Alto Networks PAN-OS=11.1.6-h1
Palo Alto Networks PAN-OS=11.1.6-h10
Palo Alto Networks PAN-OS=11.1.6-h14
Palo Alto Networks PAN-OS=11.1.6-h17
Palo Alto Networks PAN-OS=11.1.6-h18
Palo Alto Networks PAN-OS=11.1.6-h19
Palo Alto Networks PAN-OS=11.1.6-h2
Palo Alto Networks PAN-OS=11.1.6-h20
Palo Alto Networks PAN-OS=11.1.6-h21
Palo Alto Networks PAN-OS=11.1.6-h22
Palo Alto Networks PAN-OS=11.1.6-h23
Palo Alto Networks PAN-OS=11.1.6-h25
Palo Alto Networks PAN-OS=11.1.6-h29
Palo Alto Networks PAN-OS=11.1.6-h3
Palo Alto Networks PAN-OS=11.1.6-h32
Palo Alto Networks PAN-OS=11.1.6-h33
Palo Alto Networks PAN-OS=11.1.6-h34
Palo Alto Networks PAN-OS=11.1.6-h4
Palo Alto Networks PAN-OS=11.1.6-h6
Palo Alto Networks PAN-OS=11.1.6-h7
Palo Alto Networks PAN-OS=11.1.10
Palo Alto Networks PAN-OS=11.1.10-h1
Palo Alto Networks PAN-OS=11.1.10-h10
Palo Alto Networks PAN-OS=11.1.10-h12
Palo Alto Networks PAN-OS=11.1.10-h21
Palo Alto Networks PAN-OS=11.1.10-h25
Palo Alto Networks PAN-OS=11.1.10-h26
Palo Alto Networks PAN-OS=11.1.10-h27
Palo Alto Networks PAN-OS=11.1.10-h28
Palo Alto Networks PAN-OS=11.1.10-h4
Palo Alto Networks PAN-OS=11.1.10-h5
Palo Alto Networks PAN-OS=11.1.10-h7
Palo Alto Networks PAN-OS=11.1.10-h9
Palo Alto Networks PAN-OS=11.1.13
Palo Alto Networks PAN-OS=11.1.13-h1
Palo Alto Networks PAN-OS=11.1.13-h2
Palo Alto Networks PAN-OS=11.1.13-h3
Palo Alto Networks PAN-OS=11.1.13-h5
Palo Alto Networks PAN-OS=11.1.13-h6
Palo Alto Networks PAN-OS=11.1.13-h7
Palo Alto Networks PAN-OS=11.1.13-h8
Palo Alto Networks PAN-OS>=11.2.0<11.2.4
Palo Alto Networks PAN-OS>=11.2.5<11.2.7
Palo Alto Networks PAN-OS>=11.2.8<11.2.10
Palo Alto Networks PAN-OS>=11.2.11<11.2.13
Palo Alto Networks PAN-OS=11.2.4
Palo Alto Networks PAN-OS=11.2.4-h1
Palo Alto Networks PAN-OS=11.2.4-h10
Palo Alto Networks PAN-OS=11.2.4-h11
Palo Alto Networks PAN-OS=11.2.4-h12
Palo Alto Networks PAN-OS=11.2.4-h14
Palo Alto Networks PAN-OS=11.2.4-h15
Palo Alto Networks PAN-OS=11.2.4-h17
Palo Alto Networks PAN-OS=11.2.4-h18
Palo Alto Networks PAN-OS=11.2.4-h2
Palo Alto Networks PAN-OS=11.2.4-h3
Palo Alto Networks PAN-OS=11.2.4-h4
Palo Alto Networks PAN-OS=11.2.4-h5
Palo Alto Networks PAN-OS=11.2.4-h6
Palo Alto Networks PAN-OS=11.2.4-h7
Palo Alto Networks PAN-OS=11.2.4-h8
Palo Alto Networks PAN-OS=11.2.4-h9
Palo Alto Networks PAN-OS=11.2.7
Palo Alto Networks PAN-OS=11.2.7-h1
Palo Alto Networks PAN-OS=11.2.7-h10
Palo Alto Networks PAN-OS=11.2.7-h11
Palo Alto Networks PAN-OS=11.2.7-h12
Palo Alto Networks PAN-OS=11.2.7-h13
Palo Alto Networks PAN-OS=11.2.7-h14
Palo Alto Networks PAN-OS=11.2.7-h15
Palo Alto Networks PAN-OS=11.2.7-h16
Palo Alto Networks PAN-OS=11.2.7-h17
Palo Alto Networks PAN-OS=11.2.7-h2
Palo Alto Networks PAN-OS=11.2.7-h3
Palo Alto Networks PAN-OS=11.2.7-h4
Palo Alto Networks PAN-OS=11.2.7-h7
Palo Alto Networks PAN-OS=11.2.7-h8
Palo Alto Networks PAN-OS=11.2.10
Palo Alto Networks PAN-OS=11.2.10-h1
Palo Alto Networks PAN-OS=11.2.10-h10
Palo Alto Networks PAN-OS=11.2.10-h2
Palo Alto Networks PAN-OS=11.2.10-h3
Palo Alto Networks PAN-OS=11.2.10-h4
Palo Alto Networks PAN-OS=11.2.10-h5
Palo Alto Networks PAN-OS=11.2.10-h6
Palo Alto Networks PAN-OS=11.2.10-h7
Palo Alto Networks PAN-OS=11.2.10-h8
Palo Alto Networks PAN-OS=11.2.10-h9
Palo Alto Networks PAN-OS>=12.1.2<12.1.4
Palo Alto Networks PAN-OS>=12.1.5<12.1.7
Palo Alto Networks PAN-OS=12.1.4
Palo Alto Networks PAN-OS=12.1.4-h2
Palo Alto Networks PAN-OS=12.1.4-h3
Palo Alto Networks PAN-OS=12.1.4-h5
Palo Alto Networks PAN-OS=12.1.4-h6
Palo Alto Networks PAN-OS=12.1.4-h7
Palo Alto Networks PAN-OS=12.1.7
Palo Alto Networks PAN-OS=12.1.7-h1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 12.1.4-h8Fixed in 12.1.7-h2Fixed in 12.1.8Fixed in 11.2.4-h20Fixed in 11.2.7-h18Fixed in 11.2.10-h12Fixed in 11.2.13Fixed in 11.1.4-h35Fixed in 11.1.6-h35Fixed in 11.1.7-h8Fixed in 11.1.10-h30Fixed in 11.1.13-h9Fixed in 11.1.16Fixed in 10.2.7-h36Fixed in 10.2.10-h39Fixed in 10.2.13-h23Fixed in 10.2.16-h9Fixed in 10.2.18-h8
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 11.2.7-h18Fixed in 10.2.10-h39
  3. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 10.2.7-h36
  4. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 10.2.10-h39
  5. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 10.2.13-h23
  6. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 10.2.16-h9
  7. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 11.1.4-h35
  8. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 11.1.6-h35
  9. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 11.1.7-h8
  10. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 11.1.10-h30
  11. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 11.2.4-h20
  12. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 11.2.7-h18
  13. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 11.2.10-h12
  14. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 11.2.13
  15. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 12.1.4-h8
  16. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 12.1.8
  17. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 10.2.18-h8
  18. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 11.1.16
  19. Upgrade

    Upgrade PAN-OS to a version that resolves this vulnerability.

    Fixed in 12.1.7-h2
  20. Upgrade

    Upgrade Prisma Access 10.2 to a version that resolves this vulnerability.

    Fixed in 10.2.10-h39
  21. Upgrade

    Upgrade Prisma Access 11.2 to a version that resolves this vulnerability.

    Fixed in 11.2.7-h18
  22. Compensating control

    Since repeated attempts can trigger maintenance mode, plan for and monitor systems entering maintenance mode while upgrading PAN-OS/Prisma Access to the suggested fixed versions.

Event History

Jul 8, 2026
Advisory Published
via Palo Alto Networks·04:00 PM
Data Sourced
via Palo Alto Networks·04:00 PM
RemedyDescriptionSeverityWeaknessAffected Software
Jul 9, 2026
CVE Published
via MITRE·06:51 PM
Data Sourced
via MITRE·06:51 PM
DescriptionWeakness
Data Sourced
via NVD·07:17 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-0287?

The severity of CVE-2026-0287 is high with a score of 8.7.

2

How do I fix CVE-2026-0287?

To fix CVE-2026-0287, ensure that you update to the latest version of Palo Alto Networks PAN-OS that addresses this vulnerability.

3

What type of vulnerability is CVE-2026-0287?

CVE-2026-0287 is classified as a denial of service vulnerability in network traffic processing.

4

Who is affected by CVE-2026-0287?

Palo Alto Networks PAN-OS software users and those utilizing Palo Alto Networks Prisma Access are affected by CVE-2026-0287.

5

Can CVE-2026-0287 be exploited remotely?

Yes, CVE-2026-0287 can be exploited remotely by an unauthenticated attacker with network access.

Company

Resources

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