cvedb.io
CVE-2026-22258
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-01-27T17:16:12.253 · Last modified 2026-06-17T10:19:39.013

Summary

Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, crafted DCERPC traffic can cause Suricata to expand a buffer w/o limits, leading to memory exhaustion and the process getting killed. While reported for DCERPC over UDP, it is believed that DCERPC over TCP and SMB are also vulnerable. DCERPC/TCP in the default configuration should not be vulnerable as the default stream depth is limited to 1MiB. Versions 8.0.3 and 7.0.14 contain a patch. Some workarounds are available. For DCERPC/UDP, disable the parser. For DCERPC/TCP, the `stream.reassembly.depth` setting will limit the amount of data that can be buffered. For DCERPC/SMB, the `stream.reassembly.depth` can be used as well, but is set to unlimited by default. Imposing a limit here may lead to loss of visibil

Affected products

oisf — suricata

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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.