Description
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, a single byte read heap overflow when logging the verdict in eve.alert and eve.drop records can lead to crashes. This requires the per packet alert queue to be filled with alerts and then followed by a pass rule. This issue has been patched in versions 7.0.13 and 8.0.2. To reduce the likelihood of this issue occurring, the alert queue size a should be increased (packet-alert-max in suricata.yaml) if verdict is enabled.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_confirm
https://github.com/OISF/suricata/security/advisories/GHSA-83v7-gm34-f437
Patch x_refsource_misc
https://github.com/OISF/suricata/commit/482e5eac9218d007adbe2410d6c00173368ce947
Scores
CVSS v3
7.5
EPSS
0.0006
EPSS Percentile
19.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-122
CWE-787
Status
published
Products (1)
oisf/suricata
< 7.0.13
Published
Nov 26, 2025
Tracked Since
Feb 18, 2026