CVE-2026-42996

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Source

https://cve.org/CVERecord?id=CVE-2026-42996

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42996.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-42996

Aliases

GHSA-98hp-pjp7-w62x

Published

2026-05-01T06:42:58Z

Modified

2026-08-12T16:24:24Z

Severity

10.0 (Critical) CVSS_V4 - 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 CVSS Calculator

Summary

[none]

Details

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.

Database specific

{
    "cna_assigner":  "mitre",
    "cwe_ids":  [
        "CWE-121"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42996.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "fixed":  "3.0"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}

References

Affected packages

Git / github.com/js8call-improved/js8call-improved

Affected ranges

Type

GIT

Repo

https://github.com/js8call-improved/js8call-improved

Events

Introduced

Fixed

fd721e8b67eed84cb3c09d018205ab9a53e1a8b1

Fixed

a6c7a19b82bbd7c2c0c892576f84d7449e8c7088

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "JS8Call"
        },
        {
            "fixed":  "2.3.1"
        }
    ],
    "source":  [
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

2.*

2.4

lib/2.*

lib/2.5

lib/2.6

v2.*

v2.2.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42996.json"

vanir_signatures

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    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "310362226120168573999317246591988258414",
            "length":  1085
        },
        "id":  "CVE-2026-42996-250f31b0",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/js8call-improved/js8call-improved/commit/a6c7a19b82bbd7c2c0c892576f84d7449e8c7088",
        "target":  {
            "file":  "JS8_Main/APRSISClient.cpp",
            "function":  "APRSISClient::grid2deg"
        }
    },
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            "threshold":  0.9
        },
        "id":  "CVE-2026-42996-c48c8117",
        "signature_type":  "Line",
        "signature_version":  "v1",
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]

vanir_signatures_modified

"2026-08-12T16:24:24Z"