CVE-2026-42996 (GCVE-0-2026-42996)

Vulnerability from cvelistv5 – Published: 2026-05-01 06:42 – Updated: 2026-05-01 22:10
VLAI
Summary
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.
Severity
10 (Critical)
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
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-01 13:24 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
mitre CNA under the mitre root
CNA scorecard E 29/100 over 2354 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
JS8Call JS8Call Affected: 0 , ≤ 2.3.1 (semver)
guessed Create a notification for this product.
JS8Call-improved JS8Call-improved Affected: 0 , < 3.0 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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