The MemcmpLowercase function in Suricata before 2.0.6 improperly excludes the first byte…
Priority MEDIUM 48CWE-264Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-264.
Summary
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.
Why it matters now
EPSS 0.03258 88th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:openinfosecfoundation:suricata:*:*:*:*:*:*:*:* | up to 2.0.5 | Vulnerable | Openinfosecfoundation |
- cpe:2.3:a:openinfosecfoundation:suricata:*:*:*:*:*:*:*:* Versions up to 2.0.5 Vulnerable ·Openinfosecfoundation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2015-8954
- 2026-10-03 Alias added: GHSA-m68q-w483-4j98
References
More Openinfosecfoundation Suricata vulnerabilities
- TI-2017-11290 In Suricata before 4.x, it was possible to trigger lots of redundant checks on the… CVSS 3.0HIGH 7.5
- TI-2017-04876 Suricata before 3.2.1 has an IPv4 defragmentation evasion issue caused by lack of a check… CVSS 3.0HIGH 7.5
- TI-2014-05453 The SSHParseBanner function in SSH parser (app-layer-ssh.c) in Suricata before 2.0.4… CVSS 2.0MEDIUM 5.0
- TI-2013-05054 Suricata before 1.4.6 allows remote attackers to cause a denial of service (crash) via a malformed SSL record. CVSS 2.0MEDIUM 5.0
- TI-2015-00886 The DER parser in Suricata before 2.0.8 allows remote attackers to cause a denial of… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2015-8954 · CVE Program
- CVE-2015-8954 · NVD
- FIRST EPSS
- GHSA-m68q-w483-4j98 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences