CVE-2025-30655Improper Check for Unusual or Exceptional Conditions in Networks Junos OS

Severity
6.8MEDIUMNVD
EPSS
0.1%
top 79.74%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedApr 9

Description

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker to 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. The device is only affected if BGP RIB sharding and update-threading

CVSS vector

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

Affected Packages4 packages

CVEListV5juniper_networks/junos_os_evolved21.4-EVO21.4R3-S8-EVO+5
CVEListV5juniper_networks/junos_os21.421.4R3-S8+5
NVDjuniper/junos< 21.2+6

🔴Vulnerability Details

2
CVEList
Junos OS and Junos OS Evolved: A specific CLI command will cause an RPD crash when rib-sharding and update-threading is enabled2025-04-09
GHSA
GHSA-6r98-j483-grpm: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS E2025-04-09

📋Vendor Advisories

1
Juniper
CVE-2025-30655: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS E2025-04-09
CVE-2025-30655 — Networks Junos OS vulnerability | cvebase