GurumDDS Heap-based Incorrect Calculation of Buffer Size

6.6 CVSS

Vulnerability Description

All versions of GurumDDS improperly calculate the size to be used when allocating the buffer, which may result in a buffer overflow.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Federico Maggi (Trend Micro Research), Ta-Lun Yen, and Chizuru Toyama (TXOne Networks, Trend Micro) reported these vulnerabilities to CISA. In addition, Patrick Kuo, Mars Cheng (TXOne Networks, Trend Micro), Víctor Mayoral-Vilches (Alias Robotics), and Erik Boasson (ADLINK Technology) also contributed to this research.

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02

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CVE-2021-38439

GurumDDS Heap-based Buffer Overflow

High 8.6

Affected Vendor

GurumNetworks

View all reports →

Affected Software

GurumDDS

Vulnerable Versions:

all versions

Timeline

Official Publish: May 5th, 2022

Last Modified: April 16th, 2025

Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H

Weaknesses (CWE)

CWE-131

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.