CVE-2015-8954: Openinfosecfoundation Suricata

Critical severity, CVSS 9.8. EPSS: 3.3% chance of exploitation in the next 30 days.

The MemcmpLowercase function in Suricata before 2.0.6 improperly excludes the first byte from comparisons, which might allow remote attackers to bypass intrusion-prevention functionality via a crafted HTTP request.

Affected products

• Openinfosecfoundation Suricata: up to and including 2.0.5

Published 2017-03-20. Last modified 2026-06-17.