CVE-2025-29915 HIGH

CVE-2025-29915: Suricata af-packet: defrag option can lead to truncated packets affecting visibility

Vendor Oisf
Product suricata
Weakness CWE-347
Published April 10, 2025
Last update April 10, 2025
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

What the vulnerability does

01Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. The AF_PACKET defrag option is enabled by default and allows AF_PACKET to re-assemble fragmented packets before reaching Suricata. However the default packet size in Suricata is based on the network interface MTU which leads to Suricata seeing truncated packets. Upgrade to Suricata 7.0.9, which uses better defaults and adds warnings for user configurations that may lead to issues.

Key dates

02Disclosure timeline

April 10, 2025 CVE published
April 10, 2025 Record updated