cvedb.io
CVE-2026-21913
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-01-15T21:16:07.537 · Last modified 2026-06-17T10:19:08.913

Summary

An Incorrect Initialization of Resource vulnerability in the Internal Device Manager (IDM) of Juniper Networks Junos OS on EX4000 models allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS). On EX4000 models with 48 ports (EX4000-48T, EX4000-48P, EX4000-48MP) a high volume of traffic destined to the device will cause an FXPC crash and restart, which leads to a complete service outage until the device has automatically restarted. The following reboot reason can be seen in the output of 'show chassis routing-engine' and as a log message:   reason=0x4000002 reason_string=0x4000002:watchdog + panic with core dump This issue affects Junos OS on EX4000-48T, EX4000-48P and EX4000-48MP: * 24.4 versions before 24.4R2, * 25.2 versions before 25.2R1

Affected products

juniper — junos

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.