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G4KLX
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- 1Critical integer underflow flaw reported in DStarGateway softwareโCVE-2026-122992: CRITICAL integer underflow in dstarCallsignToAPRS (G4KLX & F4FXL DStarGateway https:// radar.offseq.com
A new vulnerability, CVE-2026-122992, has been disclosed affecting the G4KLX and F4FXL DStarGateway implementations used in amateur radio D-STAR gateways. The flaw is an integer underflow in the dstarCallsignToAPRS function in APRSUtils.cpp, and it is rated critical. Users running affected versions are expected to check for patches or updated builds.
- 2Critical vulnerability disclosed in G4KLX DStarGateway softwareโ๐จ EUVD-2026-117270 ๐ Score: 9.2/10 (CVSS v3.1) ๐ฆ Product: DStarGateway ๐ข Vendor: G4KLX ๐ Updated: 2026-11-05 ๐ In G4KLX
A high-severity vulnerability, tracked as EUVD-2026-117270 and scored 9.2 out of 10 under CVSS v3.1, has been disclosed in G4KLX DStarGateway and F4FXL DStarGateway before commit 7b75de6. The flaw sits in the dstarCallsignToAPRS function in APRSUtils.cpp, where an empty RS-MS1A sender field triggers an integer underflow. Updated records were published on November 5, 2026, and users of the amateur radio gateway software are advised to check for patched builds.