CVE-2026-122992 - Vulnerability Details - OpenCVE

In G4KLX DStarGateway and F4FXL DStarGateway before 7b75de6, dstarCallsignToAPRS in APRSUtils.cpp has an integer underflow via an empty RS-MS1A sender field.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact partial

Vendors	Products
G4klx	Dstargateway

No data.

No data.

References

Link	Providers
https://github.com/F4FXL/DStarGateway/blob/7b75de605dca542a2953dd74c16f0eac96a8944e/README.md?plain=1#L159-L161
https://github.com/F4FXL/DStarGateway/pull/71
https://github.com/g4klx/DStarGateway

History

Tue, 10 Nov 2026 21:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Fri, 06 Nov 2026 22:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		G4klx G4klx dstargateway
Vendors & Products		G4klx G4klx dstargateway

Thu, 05 Nov 2026 04:15:00 +0000

Type	Values Removed	Values Added
Title		Integer Underflow in DStarGateway RS-MS1A Sender Field

Thu, 05 Nov 2026 02:45:00 +0000

Type	Values Removed	Values Added
Description		In G4KLX DStarGateway and F4FXL DStarGateway before 7b75de6, dstarCallsignToAPRS in APRSUtils.cpp has an integer underflow via an empty RS-MS1A sender field.
Weaknesses		CWE-191
References		https://github.com/F4FXL/DStarGateway/blob/7b75de605dca542a2953dd74c16f0eac96a8944e/README.md?plain=1#L159-L161 https://github.com/F4FXL/DStarGateway/pull/71 https://github.com/g4klx/DStarGateway
Metrics		cvssV4_0 `{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H'}`

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-11-05T02:36:35.657Z

Updated: 2026-11-09T20:39:58.721Z

Reserved: 2026-11-05T02:36:35.286Z

Link: CVE-2026-122992

Vulnrichment

Updated: 2026-11-09T20:39:53.446Z

NVD

Status : Deferred

Published: 2026-11-05T03:17:25.513

Modified: 2026-11-12T22:11:01.153

Link: CVE-2026-122992

Redhat

No data.

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