7.5
CVE-2026-22258
- EPSS 0.48%
- Veröffentlicht 27.01.2026 16:17:29
- Zuletzt bearbeitet 30.01.2026 20:09:24
- Quelle security-advisories@github.com
- CVE-Watchlists
- Unerledigt
LoginSuricata DCERPC: unbounded fragment buffering leads to memory exhaustion
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.
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.48% | 0.377 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| security-advisories@github.com | 7.5 | 3.9 | 3.6 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
|
CWE-400 Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource.
CWE-770 Allocation of Resources Without Limits or Throttling
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
https://github.com/OISF/suricata/security/advisories/GHSA-289c-h599-3xcx
https://github.com/OISF/suricata/commit/39d8c302af3422a096b75474a4f295a754ec6a74
https://github.com/OISF/suricata/commit/f82a388d0283725cb76782cf64e8341cab370830
https://redmine.openinfosecfoundation.org/issues/8182