CVE-2026-57032

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[<PID>]: AGENTD_RESOURCE_NOT_FOUND: No resource name found for <sensor> 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.
References
Link Resource
https://supportportal.juniper.net/JSA110092 Mitigation Vendor Advisory
Configurations

Configuration 1 (hide)

AND
OR cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.2:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.2:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.2:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.2:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.2:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.2:r2-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.2:r2-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.2:r2-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.2:r2-s6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.4:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.4:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.4:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.4:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.4:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.4:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.4:r2-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.4:r2-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.4:r2-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.4:r2-s6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:23.4:r2-s7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:24.2:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:24.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:24.2:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:24.2:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:24.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:24.2:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:24.2:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:24.2:r2-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:24.2:r2-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:24.4:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:24.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:24.4:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:24.4:r1-s3:*:*:*:*:*:*
OR cpe:2.3:h:juniper:ex2300:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:ex2300-c:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:ex3400:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:ex4000:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:ex4100:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:ex4100-f:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:ex4100-h:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:ex4100-h-12t:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:ex4400:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-07-09 22:17

Updated : 2026-07-13 20:07


NVD link : CVE-2026-57032

Mitre link : CVE-2026-57032

CVE.ORG link : CVE-2026-57032


JSON object : View

Products Affected

juniper

  • ex4100-h
  • ex4400
  • ex4000
  • ex2300-c
  • ex2300
  • ex3400
  • ex4100
  • ex4100-h-12t
  • ex4100-f
  • junos
CWE
CWE-236

Improper Handling of Undefined Parameters