CVE-2025-30652: Junos OS and Junos OS Evolved: Executing a specific CLI command when asregex-optimized is configured causes an rpd crash
First published: Wed Apr 09 2025(Updated: )
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.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper JUNOS | <21.2R3-S9>=undefined>=undefined>=undefined>=undefined>=undefined>=undefined | |
| Juniper Networks Junos OS | <21.2R3-S9-EVO>=undefined>=undefined>=undefined>=undefined>=undefined>=undefined |
Remedy
The following software releases have been updated to resolve this specific issue: Junos OS: 21.2R3-S9, 21.4R3-S10, 22.2R3-S6, 22.4R3-S6, 23.2R2-S3, 23.4R2-S4, 24.2R2, 24.4R1, and all subsequent releases. Junos OS Evolved: 21.2R3-S9-EVO, 21.4R3-S10-EVO, 22.2R3-S6-EVO, 22.4R3-S6-EVO, 23.2R2-S3-EVO, 23.4R2-S4-EVO, 24.2R2-EVO, 24.4R1-EVO, and all subsequent releases.
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-30652?
CVE-2025-30652 has a severity rating of Medium due to its potential to cause Denial of Service (DoS) under specific conditions.
How do I fix CVE-2025-30652?
To fix CVE-2025-30652, you should update Junos OS or Junos OS Evolved to a version above 21.2R3-S9.
What systems are affected by CVE-2025-30652?
CVE-2025-30652 affects Juniper Networks Junos OS and Junos OS Evolved versions up to but not including 21.2R3-S9.
What type of vulnerability is CVE-2025-30652?
CVE-2025-30652 is classified as an Improper Handling of Exceptional Conditions vulnerability.
Can CVE-2025-30652 be exploited by attackers?
Yes, a local, low-privileged attacker can exploit CVE-2025-30652 by executing a CLI command to cause a Denial of Service.
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