Denial of Service Vulnerability in Palo Alto Networks PAN-OS Software
CVE-2026-0287

4.6MEDIUM

Key Information:

Vendor

Palo Alto Networks
Status
Cloud Ngfw
Pan-os
Prisma Access
Vendor
CVE Published:
9 July 2026

Badges

👾 Exploit Exists

What is CVE-2026-0287?

Multiple denial of service vulnerabilities have been identified in Palo Alto Networks PAN-OS software, allowing unauthenticated attackers with network access to exploit these weaknesses by sending specially crafted network traffic to or through a dataplane interface. If triggered repeatedly, this vulnerability can lead to the firewall entering maintenance mode, disrupt network availability, and compromise security measures. It is crucial for users to apply security updates and monitor system performance to mitigate risks associated with these vulnerabilities.

Affected Version(s)

Cloud NGFW AWS All

PAN-OS 12.1.0 < 12.1.4-h8

PAN-OS 11.2.0 < 11.2.4-h20

References

https://security.paloaltonetworks.com/CVE-2026-0287
vendor-advisory

CVSS V4

Score:
4.6
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

our internal security research teams
.