CVE-2026-22258

HIGH EPSS 38.0%
Published Jan 27, 20265mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Jan 27, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
38.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-400 Uncontrolled Resource Consumption Resource Mgmt
CWE-770

Affected Products 2

VendorProductVersionRange
oisfsuricata* <7.0.14
oisfsuricata*≥8.0.0  –  <8.0.3

References 4

  • github.com https://github.com/OISF/suricata/commit/39d8c302af3422a096b75474a4f295a754ec6a74
    Patch
  • github.com https://github.com/OISF/suricata/commit/f82a388d0283725cb76782cf64e8341cab370830
    Patch
  • github.com https://github.com/OISF/suricata/security/advisories/GHSA-289c-h599-3xcx
    PatchVendor Advisory
  • redmine.openinfosecfoundation.org https://redmine.openinfosecfoundation.org/issues/8182
    Issue TrackingPermissions Required

Remediation

  • github.com https://github.com/OISF/suricata/commit/39d8c302af3422a096b75474a4f295a754ec6a74
    Patch
  • github.com https://github.com/OISF/suricata/commit/f82a388d0283725cb76782cf64e8341cab370830
    Patch
  • github.com https://github.com/OISF/suricata/security/advisories/GHSA-289c-h599-3xcx
    PatchVendor Advisory