Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
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.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
CVE-2026-22258 Suricata DCERPC Traffic Memory Exhaustion Vulnerability in Versions Below 8.0.3 and 7.0.14 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-22258
Post summary
CVE-2026-22258 is a memory exhaustion flaw in Suricata (versions <8.0.3 and <7.0.14) triggered by DCERPC traffic.
CVE-2026-22258 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… https://www.cve.org/CVERecord?id=CVE-2026-22258
Post summary
The post discloses a buffer overflow flaw in Suricata that can be triggered by crafted DCERPC traffic in versions before 8.0.3 and 7.0.14.
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| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | oisf | suricata | - | - | - |