CVE-2026-0263 PAN-OS: Remote Code Execution (RCE) in IKEv2 Processing
Unauthenticated attackers can execute arbitrary code with elevated privileges or cause denial of service via buffer overflow in PAN-OS IKEv2 processing.
- 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-2026-0263?
CVE-2026-0263 is a high-severity memory corruption vulnerability in Paloaltonetworks Pan-Os, published on 13 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-787
Which versions are affected by CVE-2026-0263?
It affects 1 product.
Products include Paloaltonetworks Pan-Os.
How do I fix CVE-2026-0263?
No fix has been published for CVE-2026-0263 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-0263 being exploited?
There is no known exploitation of CVE-2026-0263 in the wild and no public exploit code.
Other vulnerabilities in Paloaltonetworks Pan-Os
- CVE-2024-3400 Palo Alto Networks PAN-OS Command Injection
- CVE-2020-2021 Palo Alto Networks PAN-OS Authentication Bypass
- CVE-2017-15944 Palo Alto Networks PAN-OS Remote Code Execution
- CVE-2026-0300 Palo Alto Networks PAN-OS Out-of-bounds Write
- CVE-2024-0012 Palo Alto Networks PAN-OS Management Interface Authentication Bypass
Sources
Also known as GHSA-xqxf-q4xj-jxh3.