CVE-2026-31937: CWE-407: Inefficient Algorithmic Complexity in OISF suricata
Suricata is a network IDS, IPS and NSM engine. Prior to version 7.0.15, inefficiency in DCERPC buffering can lead to a performance degradation. This issue has been patched in version 7.0.15.
AI Analysis
Technical Summary
Suricata, a network IDS/IPS and NSM engine, contained an inefficiency in its DCERPC buffering implementation prior to version 7.0.15. This inefficiency leads to algorithmic complexity issues classified under CWE-407, resulting in performance degradation that impacts availability. The vulnerability has a CVSS 3.1 score of 7.5 (high) with network attack vector, low attack complexity, no privileges required, no user interaction, and no confidentiality or integrity impact. The issue was patched in version 7.0.15.
Potential Impact
The vulnerability causes performance degradation in Suricata's DCERPC buffering, impacting the availability of the IDS/IPS/NSM service. There is no impact on confidentiality or integrity. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade Suricata to version 7.0.15 or later, where this inefficiency has been patched. Since this is an official fix, applying the update fully mitigates the vulnerability.
CVE-2026-31937: CWE-407: Inefficient Algorithmic Complexity in OISF suricata
Description
Suricata is a network IDS, IPS and NSM engine. Prior to version 7.0.15, inefficiency in DCERPC buffering can lead to a performance degradation. This issue has been patched in version 7.0.15.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Suricata, a network IDS/IPS and NSM engine, contained an inefficiency in its DCERPC buffering implementation prior to version 7.0.15. This inefficiency leads to algorithmic complexity issues classified under CWE-407, resulting in performance degradation that impacts availability. The vulnerability has a CVSS 3.1 score of 7.5 (high) with network attack vector, low attack complexity, no privileges required, no user interaction, and no confidentiality or integrity impact. The issue was patched in version 7.0.15.
Potential Impact
The vulnerability causes performance degradation in Suricata's DCERPC buffering, impacting the availability of the IDS/IPS/NSM service. There is no impact on confidentiality or integrity. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade Suricata to version 7.0.15 or later, where this inefficiency has been patched. Since this is an official fix, applying the update fully mitigates the vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-03-10T15:10:10.654Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69ce82f2e6bfc5ba1de1d94b
Added to database: 4/2/2026, 2:53:38 PM
Last enriched: 4/9/2026, 10:45:27 PM
Last updated: 5/20/2026, 9:37:01 PM
Views: 42
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