Access of Uninitialized Pointer in Junos OS and Junos OS Evolved - CVE-2025-59962
Published: October 13, 2025
Vulnerability identifier: #VU116935
CSH Severity: Medium
CVSS v4: 6 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-59962
CWE-ID: CWE-824
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the routing protocol daemon (rpd) with BGP sharding configured. A remote attacker can triggering indirect next-hop updates, along with timing outside the attacker's control to perform a denial of service attack.
Affected software
Junos OS
Junos OS Evolved
Junos OS Evolved
How to mitigate CVE-2025-59962
Install updates from vendor's website.
Junos OS - addressed in versions 21.4R3-S6, 22.1R3-S6, 22.2R3-S3, 22.3R3-S3, 22.4R3, 23.2R2, 23.4R1
Junos OS Evolved - addressed in versions 22.3R3-S3-EVO, 22.4R3-EVO, 23.2R2-EVO, 23.4R1-EVO
Junos OS Evolved - addressed in versions 22.3R3-S3-EVO, 22.4R3-EVO, 23.2R2-EVO, 23.4R1-EVO