Description


A Stack-based Buffer Overflow vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS allows a network-based attacker, authenticated with low privileges to cause a Denial-of-Service (DoS). Subscribing to telemetry sensors at scale causes all FPC connections to drop, resulting in an FPC crash and restart. The issue was not seen when YANG packages for the specific sensors were installed. This issue affects Junos OS:  * all versions before 22.4R3-S7, * 23.2 version before 23.2R2-S4, * 23.4 versions before 23.4R2.

Related CPE's


o

juniper

junos

27

Weaknesses



CWE-121

CVSS impact metrics


CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

6.5 · Medium

Information


Source identifier

[email protected]

Vulnerability status

Analyzed

Published

2026-01-15T21:16:05.807Z

1 month ago

Last modified

2026-01-23T19:40:03.190Z

4 weeks ago