Status: UPDATED | Advisory ID: CVE-2026-0264
| CVE | CVE-2026-0264 |
| CVSS Score / Version | 9.8 (Critical) / CVSS v3.1 |
| Updated | 2026-09-24 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high. |
| Affected products | Siemens RUGGEDCOM APE1808 Firmware and Palo Alto Networks PAN-OS |
| Classified as | CWE-122 (Heap-based Buffer Overflow) |
| Exploitation prediction (EPSS) | 0.47% probability of exploitation in the next 30 days (38% percentile) -- FIRST.org's EPSS model. |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Siemens | RUGGEDCOM APE1808 Firmware | ||
| Palo Alto Networks | PAN-OS |
| Subsystems | PLC/PAC/RTU |
| Sectors | Critical Manufacturing, Energy, Food and Agriculture, Multi-sector, Transportation Systems |
A buffer overflow vulnerability in the DNS proxy and DNS Server features of Palo Alto Networks PAN-OS® Software allows an unauthenticated attacker with network access to cause a denial of service (DoS) condition (all PAN-OS platforms except Cloud NGFW and Prisma Access) or potentially execute arbitrary code by sending specially crafted network traffic (PA-Series hardware only).
Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
Monitor Siemens's and Palo Alto Networks's web pages for any future patch releases. See vendor advisory link below.
| Source | Reference |
|---|---|
| NVD | https://nvd.nist.gov/vuln/detail/CVE-2026-0264 |
| CVE | https://www.cve.org/CVERecord?id=CVE-2026-0264 |
| Vendor advisory | https://security.paloaltonetworks.com/CVE-2026-0264 |