Buffer access with incorrect length value in Junos OS - CVE-2025-30651
Published: May 1, 2025
Vulnerability identifier: #VU108103
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-30651
CWE-ID: CWE-805
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to buffer access with incorrect length value error in the routing protocol daemon (rpd). A remote non-authenticated attacker can cause a Denial of Service (DoS).
When an attacker sends a specific ICMPv6 packet to an interface with "protocols router-advertisement" configured, rpd crashes and restarts.
Continued receipt of this packet will cause a sustained DoS condition.
Affected software
Junos OS
How to mitigate CVE-2025-30651
Install updates from vendor's website.
Junos OS - addressed in versions 21.2R3-S9, 21.4R3-S10, 22.2R3-S6, 22.4R3-S4, 23.2R2-S2, 23.4R2, 24.2R1