SB2025041877 - Improper check for unusual or exceptional conditions in Junos OS Evolved and Juniper Junos OS



SB2025041877 - Improper check for unusual or exceptional conditions in Junos OS Evolved and Juniper Junos OS

Published: April 18, 2025

Security Bulletin ID SB2025041877
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper check for unusual or exceptional conditions (CVE-ID: CVE-2025-30655)

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper check for unusual or exceptional conditions error in the Routing Protocol Daemon (rpd). A local user can cause a Denial-of-Service (DoS).

When a specific "show bgp neighbor" CLI command is run, the rpd cpu utilization rises and eventually causes a crash and restart.

Repeated use of this command will cause a sustained DoS condition.


Remediation

Install update from vendor's website.