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

2026-05-01T06:42:58.858Z

Modified

2026-08-12T16:24:24.098434Z

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

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

vanir_signatures_modified

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

vanir_signatures

[
    {
        "id": "CVE-2026-42996-250f31b0",
        "deprecated": false,
        "signature_type": "Function",
        "signature_version": "v1",
        "digest": {
            "length": 1085.0,
            "function_hash": "310362226120168573999317246591988258414"
        },
        "source": "https://github.com/js8call-improved/js8call-improved/commit/a6c7a19b82bbd7c2c0c892576f84d7449e8c7088",
        "target": {
            "function": "APRSISClient::grid2deg",
            "file": "JS8_Main/APRSISClient.cpp"
        }
    },
    {
        "id": "CVE-2026-42996-c48c8117",
        "deprecated": false,
        "signature_type": "Line",
        "signature_version": "v1",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "7704383707382585762460477450412960954",
                "45573664063618283326767607752469245288",
                "208545788373079494033583903244752096422",
                "69805230127947473845792696962174410171",
                "146283949885922591490952867623073401660",
                "38629222466732001122922191557100741996",
                "298688861202126477694900392063424875158",
                "11502150389775127945672555941005320745",
                "158319704011829504241306459693300239463",
                "125852044605167572997560515222226829810",
                "123295126120006517314484893525258049488"
            ]
        },
        "source": "https://github.com/js8call-improved/js8call-improved/commit/a6c7a19b82bbd7c2c0c892576f84d7449e8c7088",
        "target": {
            "file": "JS8_Main/APRSISClient.cpp"
        }
    }
]

source

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