Suricata detect/transform: use-after-free in dotprefix transform
Published Sep 10, 2026
5.9
MEDIUMCVSS 3.1
EPSS 0.32%
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 products
-
- Version < 7.0.16StatusaffectedConstraints-
- Version >= 8.0.0, < 8.0.5StatusaffectedConstraints-
- Version
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Sep 11, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
Jun–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.32% (0.00319) | 22.60th | v5 (v2026.06.15) |
| Sep 11, 2026 | 0.51% (0.00509) | 41.84th | v5 (v2026.06.15) |
| Jun 12, 2026 | 0.05% (0.00052) | 16.94th | v4 (v2025.03.14) |
References (3)
- https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315 x_refsource_MISC
- https://github.com/OISF/suricata/security/advisories/GHSA-59q6-j4w8-8pjx x_refsource_CONFIRM
- https://redmine.openinfosecfoundation.org/issues/8537 x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315 | x_refsource_MISC | |
| https://github.com/OISF/suricata/security/advisories/GHSA-59q6-j4w8-8pjx | x_refsource_CONFIRM | |
| https://redmine.openinfosecfoundation.org/issues/8537 | x_refsource_MISC |
Change history (0)
No recorded changes yet.