Vulnerability · Published Apr 9, 2025 · Assigned by juniper

CVE-2025-30652Junos OS and Junos OS Evolved: Executing a specific CLI command when asregex-optimized is configured causes an rpd crash

Medium 5.5

In plain English

A medium-severity security flaw in Junos OS from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 94.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

An Improper Handling of Exceptional Conditions vulnerability in routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker executing a CLI command to cause a Denial of Service (DoS). When asregex-optimized is configured and a specific "show route as-path" CLI command is executed, the rpd crashes and restarts. Repeated execution of this command will cause a sustained DoS condition. 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-S6, * from 23.2 before 23.2R2-S3, * from 23.4 before 23.4R2-S4, * from 24.2 before 24.2R2. 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-S6-EVO, * from 23.2-EVO before 23.2R2-S3-EVO, * from 23.4-EVO before 23.4R2-S4-EVO, * from 24.2-EVO before 24.2R2-EVO.

Affected products (as reported)

VendorProductVersions
Juniper Networks Junos OS 0 – before 21.2R3-S921.4 – before 21.4R3-S1022.2 – before 22.2R3-S622.4 – before 22.4R3-S623.2 – before 23.2R2-S323.4 – before 23.4R2-S424.2 – before 24.2R2
Juniper Networks Junos OS Evolved 0 – before 21.2R3-S9-EVO21.4-EVO – before 21.4R3-S10-EVO22.2-EVO – before 22.2R3-S6-EVO22.4-EVO – before 22.4R3-S6-EVO23.2-EVO – before 23.2R2-S3-EVO23.4-EVO – before 23.4R2-S4-EVO24.2-EVO – before 24.2R2-EVO

Weakness: CWE-755 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References