OISF Suricata up to 7.0.14 DCERPC Buffering algorithmic complexity

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

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.

The vulnerability scanner Nessus provides a plugin with the ID 304880 (Linux Distros Unpatched Vulnerability : CVE-2026-31937), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 7.0.15 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (304880). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

License

Website

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 304880
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-31937

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
04/05/2026 +3 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
Updated: 04/05/2026 14:19
Changes: 04/02/2026 17:00 (64), 04/05/2026 14:19 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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