CVE-2025-30651 Information

Description

A Buffer Access with Incorrect Length Value vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker to 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. 

This issue only affects systems configured with IPv6.

This issue affects Junos OS: 

All versions before 21.2R3-S9 
from 21.4 before 21.4R3-S10 
from 22.2 before 22.2R3-S6 
from 22.4 before 22.4R3-S4 
from 23.2 before 23.2R2-S2 
from 23.4 before 23.4R2; 

and Junos OS Evolved: All versions before 21.2R3-S9-EVO from 21.4-EVO before 21.4R3-S10-EVO from 22.2-EVO before 22.2R3-S6-EVO from 22.4-EVO before 22.4R3-S4-EVO from 23.2-EVO before 23.2R2-S2-EVO from 23.4-EVO before 23.4R2-EVO.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://supportportal.juniper.net/JSA96461

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5