CVE-2025-4619 PAN-OS: Firewall Denial of Service (DoS) Using Specially Crafted Packets
An unauthenticated attacker can reboot a firewall by sending specially crafted packets, causing a denial of service.
- 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-2025-4619?
CVE-2025-4619 is a medium-severity denial of service vulnerability in Palo Alto Networks Cloud NGFW, published on 13 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A denial-of-service (DoS) vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to reboot a firewall by sending a specially crafted packet through the dataplane. Repeated attempts to initiate a reboot causes the firewall to enter maintenance mode.
This issue is applicable to the PAN-OS software versions listed below on PA-Series firewalls, VM-Series firewalls, and Prisma® Access software. This issue does not affect Cloud NGFW.
We have successfully completed the Prisma Access upgrade for all customers, with the exception of those facing issues such as conflicting maintenance windows. Remaining customers will be promptly scheduled for an upgrade through our standard upgrade process.
Weakness: CWE-754
Which versions are affected by CVE-2025-4619?
How do I fix CVE-2025-4619?
No fix has been published for CVE-2025-4619 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-2025-4619 being exploited?
There is no known exploitation of CVE-2025-4619 in the wild and no public exploit code.
Sources
Also known as GHSA-44v8-gw29-gw95.