Status: NEW | Advisory ID: CVE-2026-0263
| CVE | CVE-2026-0263 |
| 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 | Palo Alto Networks PAN-OS |
| Classified as | CWE-787 (Out-of-bounds Write) |
| Exploitation prediction (EPSS) | 0.37% probability of exploitation in the next 30 days (29% percentile) -- FIRST.org's EPSS model. |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Palo Alto Networks | PAN-OS |
| Subsystems | General OT |
| Sectors | Multi-sector |
A buffer overflow vulnerability in the IKEv2 processing of Palo Alto Networks PAN-OS® software allows an unauthenticated network-based attacker to execute arbitrary code with elevated privileges on the firewall, or cause a denial of service (DoS) condition.
Panorama, Cloud NGFW, and Prisma® Access are not impacted by these vulnerabilities.
Monitor Palo Alto Networks's web page for any future patch releases. See vendor advisory link below.
| Source | Reference |
|---|---|
| NVD | https://nvd.nist.gov/vuln/detail/CVE-2026-0263 |
| CVE | https://www.cve.org/CVERecord?id=CVE-2026-0263 |
| Vendor advisory | https://security.paloaltonetworks.com/CVE-2026-0263 |