CVE-2026-0287 PAN-OS: Denial of Service Vulnerabilities in Network Traffic Processing
Unauthenticated attackers can cause a denial of service on PAN-OS firewalls by sending crafted network traffic, potentially forcing the device into maintenance mode.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-0287?
CVE-2026-0287 is a medium-severity denial of service vulnerability in Paloaltonetworks Pan-Os, published on 9 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-754
Which versions are affected by CVE-2026-0287?
It affects 2 products.
Products include Paloaltonetworks Cloud Ngfw, Paloaltonetworks Pan-Os.
How do I fix CVE-2026-0287?
No fix has been published for CVE-2026-0287 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-0287 being exploited?
There is no known exploitation of CVE-2026-0287 in the wild and no public exploit code.
Other vulnerabilities in Paloaltonetworks Pan-Os
Sources
Also known as GHSA-8r6w-7h78-4w2j.