CVE-2026-31937 | OISF Suricata up to 7.0.14 DCERPC Buffering algorithmic complexity

VDB-354885 · CVE-2026-31937 · GCVE-0-2026-31937 OISF SURICATA UP TO 7.0.14 DCERPC BUFFERING ALGORITHMIC COMPLEXITY HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.3 $0-$5k 0.42+ Summaryinfo A vulnerability classified as problematic has been found in OISF Suricata up to 7.0.14. This vulnerability affects unknown code of the component DCERPC Buffering. Performing a manipulation results in algorithmic complexity. This vulnerability is known as CVE-2026-31937. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component. Detailsinfo A vulnerability was found in OISF Suricata up to 7.0.14. It has been classified as problematic. This affects some unknown processing of the component DCERPC Buffering. The manipulation with an unknown input leads to a algorithmic complexity vulnerability. CWE is classifying the issue as CWE-407. An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached. This is going to have an impact on availability. The summary by CVE is: 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. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-31937 since 03/10/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue. Upgrading to version 7.0.15 eliminates this vulnerability. Productinfo Vendor OISF Name Suricata Version 7.0.0 7.0.1 7.0.2 7.0.3 7.0.4 7.0.5 7.0.6 7.0.7 7.0.8 7.0.9 7.0.10 7.0.11 7.0.12 7.0.13 7.0.14 License open-source Website Product: https://github.com/OISF/suricata/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.4 VulDB Meta Temp Score: 6.3 VulDB Base Score: 5.3 VulDB Temp Score: 5.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 7.5 CNA Vector (GitHub_M): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Algorithmic complexity CWE: CWE-407 / CWE-404 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Suricata 7.0.15 Timelineinfo 03/10/2026 CVE reserved 04/02/2026 +22 days Advisory disclosed 04/02/2026 +0 days VulDB entry created 04/02/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-31937 (🔒) GCVE (CVE): GCVE-0-2026-31937 GCVE (VulDB): GCVE-100-354885 Entryinfo Created: 04/02/2026 17:00 Changes: 04/02/2026 17:00 (64) Complete: 🔍 Cache ID: 99:56B:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸