[CVE-2026-0300] Critical Buffer Overflow Vulnerability in PAN-OS Exploited in-the-Wild

CVE

CVE-2026-0300

Published

2026-05-06 12:33

Collected

2026-08-29 00:57

---
id: 6845
title: "[CVE-2026-0300] Critical Buffer Overflow Vulnerability in PAN-OS Exploited in-the-Wild"
cve: CVE-2026-0300
source_domain: wiz.io
source_url: "https://www.wiz.io/blog/critical-vulnerability-in-pan-os-exploited-in-the-wild-cve-2026-0300"
published_at: "2026-05-06T12:33:26Z"
tags: ["rce", "vulnerability", "palo-alto-networks", "pan-os", "exploited-in-the-wild", "cve-2026-0300"]
phying_url: "https://phying.com/item/6845"
lang: en
---

# [CVE-2026-0300] Critical Buffer Overflow Vulnerability in PAN-OS Exploited in-the-Wild

## Summary

CVE-2026-0300: a buffer overflow in PAN-OS User-ID Authentication Portal (CVSS 9.3) allows unauthenticated root RCE, with limited in-the-wild exploitation of exposed instances; patching advised.

## Intelligence Metadata

- **Sources:** wiz.io
- **CVE:** CVE-2026-0300
- **Published:** 2026-05-06T12:33:26Z
- **Original:** https://www.wiz.io/blog/critical-vulnerability-in-pan-os-exploited-in-the-wild-cve-2026-0300
- **Phying News:** https://phying.com/item/6845