Buffer overflow in Juniper Junos OS - CVE-2025-52955

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Main Vulnerability Database Vulnerabilities #VU113066

Buffer overflow in Juniper Junos OS - CVE-2025-52955

Published: July 18, 2025


Vulnerability identifier: #VU113066
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2025-52955
CWE-ID: CWE-120
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vendor: Juniper Networks, Inc.
Affected software:
Juniper Junos OS

Detailed vulnerability description

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). A remote attacker on the local network can initiate sending of specific updates to the jflow/sflow modules, trigger buffer overflow and perform a denial of service (DoS) attack.


How to mitigate CVE-2025-52955

Install updates from vendor's website.

Sources