Improper check for unusual or exceptional conditions in Junos OS and Junos OS Evolved - CVE-2025-30655
Published: April 18, 2025
Vulnerability identifier: #VU107616
CSH Severity: Low
CVSS v4: 6.8 [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]
CVE-ID: CVE-2025-30655
CWE-ID: CWE-754
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Junos OS
Junos OS Evolved
Junos OS Evolved
How to mitigate CVE-2025-30655
Install updates from vendor's website.
Junos OS - addressed in versions 21.2R3-S9, 21.4R3-S8
Junos OS Evolved - addressed in versions 21.2R3-S9-EVO, 21.4R3-S8-EVO
Junos OS Evolved - addressed in versions 21.2R3-S9-EVO, 21.4R3-S8-EVO