# CVE-2025-4619 — Palo Alto Networks Cloud NGFW

> As of 2026-11-07, CVE-2025-4619 is a Medium-severity (band derived from the CVSS v4.0 score, not stated by the CNA) vulnerability in Palo Alto Networks Cloud NGFW, CVSS v4.0 6.6, EPSS 0.5% (48.1th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2025-4619, most recently “Siemens SSA-364175: Multiple Vulnerabilities in Palo Alto Networks Virtual NGFW on RUGGEDCOM APE1808 (CVE-2024-3596, CVE-2025-4231 and others)”.

**Last updated:** 2025-11-14

## What is CVE-2025-4619?

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.

The record classifies CVE-2025-4619 under weakness class [CWE-754](https://intel.threadlinqs.com/cwe/CWE-754). 3 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 359 days ago.

## Severity and exploitation probability

- **CVSS v4.0 base score:** 6.6 — Medium (derived from score) (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:Y/R:U/V:C/RE:M/U:Amber`)
- **EPSS (FIRST):** 0.5% probability of exploitation in the next 30 days, higher than 48.1% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.2/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2025-11-13, last modified 2025-11-14

## Is CVE-2025-4619 being exploited?

It currently carries a trending score of 5 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Palo Alto Networks](https://intel.threadlinqs.com/vendors/palo-alto-networks): Cloud NGFW, PAN-OS, Prisma Access

## How to fix CVE-2025-4619

Vendor advisory: [https://security.paloaltonetworks.com/CVE-2025-4619](https://security.paloaltonetworks.com/CVE-2025-4619). Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

## Threat activity tracking CVE-2025-4619

1 tracked threat in the Threadlinqs corpus references CVE-2025-4619, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Siemens SSA-364175: Multiple Vulnerabilities in Palo Alto Networks Virtual NGFW on RUGGEDCOM APE1808 (CVE-2024-3596, CVE-2025-4231 and others)](https://intel.threadlinqs.com/threat/TL-2026-5479) — CRITICAL · 2026-11-07

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-11-07. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [security.paloaltonetworks.com — vendor advisory](https://security.paloaltonetworks.com/CVE-2025-4619)

Canonical: https://intel.threadlinqs.com/cve/CVE-2025-4619
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