CVEvulnerability
CVE-2026-45751
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-09-10
- Last modified
- 2026-09-28
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-416
Description
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata's inspection-buffer helper could leave an inspection pointer referencing freed memory after a chained transform caused the backing buffer to be reallocated. The issue is reached during a specific network traffic processing, and requires a specific but not malicious rule. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, avoid rules that chain `dotprefix` transform after another one.
Affected configurations
• oisf suricata (< 7.0.16)
• oisf suricata (>= 8.0.0 < 8.0.5)
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315 Release Notes
- https://github.com/OISF/suricata/security/advisories/GHSA-59q6-j4w8-8pjx Mitigation, Vendor Advisory
- https://redmine.openinfosecfoundation.org/issues/8537 Permissions Required