CVE-2026-42996 CRITICAL

CVE-2026-42996

Vendor Js8Call
Product JS8Call
Weakness CWE-121
Published May 1, 2026
Last update May 1, 2026
View on NVD All CVEs

CVSS base score

10.0/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/AU:Y/R:U/V:D/RE:M/U:Green

What the vulnerability does

01Description

JS8Call through 2.3.1 and JS8Call-improved before 3.0 have a stack-based buffer overflow via a radio transmission of @APRSIS GRID followed by a long Maidenhead locator. This occurs in grid2deg in APRSISClient.cpp.

Key dates

02Disclosure timeline

May 1, 2026 CVE published
May 1, 2026 Record updated