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Ikev2

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high advisory

CVE-2026-0263 PAN-OS: Remote Code Execution (RCE) in IKEv2 Processing

A buffer overflow vulnerability in Palo Alto Networks PAN-OS IKEv2 processing (CVE-2026-0263) allows unauthenticated network-based attackers to execute arbitrary code with elevated privileges or cause a denial of service, affecting versions 12.1, 11.2, and 11.1 when configured with Post Quantum Cryptography (PQC).

PAN-OS 12.1 +2 rce dos ikev2 palo-alto-networks firewall
2r 3t
high advisory

Cisco IKEv2 Memory Leak Vulnerability (CVE-2026-20012)

CVE-2026-20012 is a vulnerability in the IKEv2 feature of multiple Cisco products that allows an unauthenticated remote attacker to cause a denial of service by sending crafted IKEv2 packets leading to memory exhaustion.

Cisco IOS Software +3 cve-2026-20012 denial-of-service cisco ikev2
2r 2t