PT-2026-56986 · Juniper Networks · Junos

Published 2026-07-09 · Updated 2026-07-09 · CVE-2026-57032

NVD

CVSS v3.1

6.5

Medium

Base vector

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

An Improper Handling of Undefined Parameters vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on EX Series devices allows an authenticated attacker with low privileges to cause a Denial-of-Service (DoS).

If an attempt is made to subscribe to an unsupported telemetry sensor path on EX2300, EX3400, EX4000, EX4100 and EX4400 via gRPC, this causes the FPC to crash. This leads to a complete service outage until the module has automatically restarted. 

The following log message can be seen when this issue happens:

agentd[]: AGENTD RESOURCE NOT FOUND: No resource name found for

This issue affects Junos OS on

EX2300, EX3400, EX4000, EX4100 and EX4400

devices:

• all versions before 23.2R2-S7,
• 23.4 versions before 23.4R2-S8,
• 24.2 versions before 24.2R2-S5,
• 24.4 versions before 24.4R2.

Fix

Weakness Enumeration

CWE-236

Related Identifiers

CVE-2026-57032

Affected Products

Junos

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-57032 · Security Note
• https://supportportal.juniper.net/JSA110092 · Vendor Advisory