Reachable assertion in Junos OS and Junos OS Evolved - CVE-2025-52964
Published: July 18, 2025
Vulnerability identifier: #VU113049
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-52964
CWE-ID: CWE-617
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to reachable assertion error in the Routing Protocol Daemon (rpd). A remote non-authenticated attacker can cause a Denial of Service (DoS).
When the device receives a specific BGP UPDATE packet, the rpd crashes and restarts.
Continuous receipt of this specific packet will cause a sustained DoS condition.
Affected software
Junos OS
Junos OS Evolved
Junos OS Evolved
How to mitigate CVE-2025-52964
Install updates from vendor's website.
Junos OS - addressed in versions 21.4R3-S7, 22.3R3-S3, 22.4R3-S5, 23.2R2, 23.4R2, 24.2R1
Junos OS Evolved - addressed in versions 21.4R3-S7-EVO, 22.3R3-S3-EVO, 22.4R3-S5-EVO, 23.2R2-EVO, 23.4R2-EVO, 24.2R1-EVO
Junos OS Evolved - addressed in versions 21.4R3-S7-EVO, 22.3R3-S3-EVO, 22.4R3-S5-EVO, 23.2R2-EVO, 23.4R2-EVO, 24.2R1-EVO