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CVE-2026-45751 (GCVE-0-2026-45751)

Vulnerability from cvelistv5 – Published: 2026-09-10 20:28 – Updated: 2026-09-11 15:16
VLAI
Title
Suricata detect/transform: use-after-free in dotprefix transform
Summary
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.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 15:16 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
OISF suricata Affected: < 7.0.16
Affected: >= 8.0.0, < 8.0.5
guessed Create a notification for this product.
Show details on NVD website
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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