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Vulnerability · Published Oct 1, 2025 · Assigned by GitHub_M

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

Medium 6.2

In plain English

A medium-severity stack buffer overflow in suricata from OISF. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.2Medium
Exploit odds (30 days)0.2%top 89.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.24suricata8.0.1-r0ALPINE-CVE-2025-59149
Ubuntu:22.04:LTSsuricatano fix listedUBUNTU-CVE-2025-59149
Ubuntu:24.04:LTSsuricatano fix listedUBUNTU-CVE-2025-59149
Ubuntu:25.10suricatano fix listedUBUNTU-CVE-2025-59149
Ubuntu:26.04:LTSsuricatano fix listedUBUNTU-CVE-2025-59149
Ubuntu:26.10suricatano fix listedUBUNTU-CVE-2025-59149

Affected products (as reported)

VendorProductVersions
OISF suricata >= 8.0.0, < 8.0.1

Weakness: CWE-121 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References