cvedb.io
CVE-2021-31364
MEDIUM · CVSS 5.9
EPSS exploitation probability: 0%
Published 2021-10-19T19:15:09.370 · Last modified 2026-06-17T03:51:38.190

Summary

An Improper Check for Unusual or Exceptional Conditions vulnerability combined with a Race Condition in the flow daemon (flowd) of Juniper Networks Junos OS on SRX300 Series, SRX500 Series, SRX1500, and SRX5000 Series with SPC2 allows an unauthenticated network based attacker sending specific traffic to cause a crash of the flowd/srxpfe process, responsible for traffic forwarding in SRX, which will cause a Denial of Service (DoS). Continued receipt and processing of this specific traffic will create a sustained Denial of Service (DoS) condition. This issue can only occur when specific packets are trying to create the same session and logging for session-close is configured as a policy action. Affected platforms are: SRX300 Series, SRX500 Series, SRX1500, and SRX5000 Series with SPC2. Not a

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.