TI-2021-16041 Aliases CVE-2021-38439 GHSA-g8fv-j97f-qw8r

GurumDDS Heap-based Buffer Overflow

MEDIUM 53CWE-122Published 2022-05-05 · Updated 2025-04-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

All versions of GurumDDS are vulnerable to heap-based buffer overflow, which may cause a denial-of-service condition or remotely execute arbitrary code.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.02784 86th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
GurumNetworks	GurumDDS	all versions	—	No fix listed	CNA

GurumDDS VendorGurumNetworks Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:gurum:gurumdds:-:::::::*	not specified by NVD	Vulnerable	Gurum

cpe:2.3:a:gurum:gurumdds:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Gurum

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-38439
2026-10-03 Alias added: GHSA-g8fv-j97f-qw8r

References

Advisory 1

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

TI-2021-16026 GurumDDS Heap-based Incorrect Calculation of Buffer Size CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences