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CVE-2026-22258

HIGH
7.5

Descripcion

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 visibility in SMB.

Detalles CVE

Puntuacion CVSS v3.17.5
SeveridadHIGH
Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vector de ataqueNETWORK
ComplejidadLOW
Privilegios requeridosNONE
Interaccion usuarioNONE
Publicado1/27/2026
Ultima modificacion1/30/2026
Fuentenvd
Avistamientos honeypot0

Productos afectados

oisf:suricata

Debilidades (CWE)

CWE-400CWE-770

Referencias

https://github.com/OISF/suricata/commit/39d8c302af3422a096b75474a4f295a754ec6a74(security-advisories@github.com)
https://github.com/OISF/suricata/commit/f82a388d0283725cb76782cf64e8341cab370830(security-advisories@github.com)
https://github.com/OISF/suricata/security/advisories/GHSA-289c-h599-3xcx(security-advisories@github.com)
https://redmine.openinfosecfoundation.org/issues/8182(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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