#VU108104 Improper handling of exceptional conditions in Junos OS Evolved and Juniper Junos OS - CVE-2025-30652
Vulnerability identifier: #VU108104
Vulnerability risk: Low
CVSSv4.0: 4.3 [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]
CVE-ID:
CWE-ID:
CWE-755
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Junos OS Evolved
Operating systems & Components /
Operating system
Juniper Junos OS
Operating systems & Components /
Operating system
Vendor: Juniper Networks, Inc.
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper handling of exceptional conditions error in routing protocol daemon (rpd). A local user can 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.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Junos OS Evolved: before 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, 21.2R3-S9-EVO, 21.2R3-S9-EVO, 21.2R3-S9-EVO, 21.2R3-S9-EVO, 21.2R3-S9-EVO, 21.2R3-S9-EVO, 21.2R3-S9-EVO, 21.2R3-S9-EVO
Juniper Junos OS: before 21.2R3-S9, 21.4R3-S10, 22.2R3-S6, 22.4R3-S6, 23.2R2-S3, 23.4R2-S4, 24.2R2, 24.4R1, 21.2R3-S9, 21.2R3-S9, 21.2R3-S9, 21.2R3-S9, 21.2R3-S9, 21.2R3-S9, 21.2R3-S9, 21.2R3-S9
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
