Use-after-free in Juniper Junos OS and Junos OS Evolved - CVE-2025-52946
Published: July 18, 2025
Vulnerability identifier: #VU113068
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-52946
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Juniper Networks, Inc.
Affected software:
Juniper Junos OS
Junos OS Evolved
Juniper Junos OS
Junos OS Evolved
Detailed vulnerability description
The vulnerability allows a remote attacker to crash the system.
The vulnerability exists due to a use-after-free error in the routing protocol daemon (rpd). A remote attacker can send a BGP update with a specifically malformed AS PATH to cause rpd to crash.
How to mitigate CVE-2025-52946
Install updates from vendor's website.