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CVE-2026-57032 is a medium severity vulnerability with a CVSS score of 6.5. No known exploits currently, and patches are available.
Very low probability of exploitation
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
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:
| Vendor | Product |
|---|---|
| Juniper | Junos |
| Juniper |
Please cite this page when referencing data from Strobes VI. Proper attribution helps support our vulnerability intelligence research.
| Ex3400 |
| Juniper | Ex4000 |
| Juniper | Ex2300 |
| Juniper | Ex2300 C |
| Juniper | Ex4400 |
| Juniper | Ex4100 F |
| Juniper | Ex4100 |
| Juniper | Ex4100 H 12t |
| Juniper | Ex4100 H |