Buffer Access Vulnerability in Juniper Networks Junos OS and Junos OS Evolved

CVE-2025-30651

What is CVE-2025-30651?

A Buffer Access vulnerability is present within the routing protocol daemon (rpd) of Juniper Networks' Junos OS and Junos OS Evolved. This flaw allows an unauthenticated attacker to exploit the system through specially crafted ICMPv6 packets sent to an interface configured with 'protocols router-advertisement'. The attacker can trigger a crash and restart of the rpd service, leading to a Denial of Service (DoS) condition. Systems running affected versions with IPv6 enabled are particularly vulnerable to this attack, making it crucial for administrators to apply patches to mitigate the risk.

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