What’s Vulnerable › Vulnerabilities

CVE-2025-59149: Suricata: Stack buffer overflow in rule parser when processing long keywords with transforms

• Severity: medium (CVSS 6.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-01 · updated 2026-10-12
• Weakness: CWE-121

Description

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In version 8.0.0, rules using keyword ldap.responses.attribute_type (which is long) with transforms can lead to a stack buffer overflow during Suricata startup or during a rule reload. This issue is fixed in version 8.0.1. To workaround this issue, users can disable rules with ldap.responses.attribute_type and transforms.

Affected products

• OISF suricata: 8.0.0, 8.0.0-beta1, 8.0.0-rc1

References

• https://forum.suricata.io/t/suricata-8-0-1-and-7-0-12-released/6018
• https://github.com/OISF/suricata/commit/38a2cba5c397002047d84645f5ab770ff88020e1
• https://github.com/OISF/suricata/security/advisories/GHSA-vxcg-38x4-gj7j
• https://redmine.openinfosecfoundation.org/issues/7861

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