CVE-2025-52939

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Source

https://cve.org/CVERecord?id=CVE-2025-52939

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-52939.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2025-52939

Downstream

AZL-64404

Published

2025-06-23T09:26:56.917Z

Modified

2026-07-09T19:10:16.542554Z

Severity

9.4 (Critical) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:N/AU:Y/R:U/V:C/RE:M/U:Red CVSS Calculator

Summary

Potential heap-buffer overflow vulnerability in NotepadNext

Details

Out-of-bounds Write vulnerability in dail8859 NotepadNext (src/lua/src modules). This vulnerability is associated with program files ldebug.C, lvm.C.

This issue affects NotepadNext: through v0.11.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/52xxx/CVE-2025-52939.json",
    "cna_assigner": "GovTech CSG",
    "cwe_ids": [
        "CWE-787"
    ]
}

References

Affected packages

Git / github.com/dail8859/notepadnext

Affected ranges

Type

GIT

Repo

https://github.com/dail8859/notepadnext

Events

Introduced

Fixed

5875f739855ea0c80dba7a1f10ec8ab248587697

Fixed

3e928d91b8fc8bb5c77801ee8652f41e98d12571

Database specific

{
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "v0.11"
        }
    ]
}

Affected versions

v0.*

v0.1

v0.10

v0.11

v0.2

v0.3

v0.3.1

v0.3.2

v0.3.3

v0.4

v0.4.1

v0.4.2

v0.4.3

v0.4.4

v0.4.5

v0.4.6

v0.4.7

v0.4.8

v0.4.9

v0.5

v0.5.1

v0.5.2

v0.5.3

v0.5.4

v0.5.5

v0.5.6

v0.6

v0.6.1

v0.6.2

v0.6.3

v0.6.4

v0.7

v0.8

v0.9

Database specific

vanir_signatures_modified

"2026-07-09T19:10:16Z"

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-52939.json"

vanir_signatures

[
    {
        "id": "CVE-2025-52939-195fee2c",
        "digest": {
            "line_hashes": [
                "109160025163517894246555464311927905168",
                "159618918195428700036162165579477364744",
                "283141188429944630371482485266135235772",
                "221963446402022317367091809335463570364",
                "244764617910085233208160284415443226461",
                "237849260543562680110344945870625485769",
                "37562800747512701822999390229154263700",
                "219524848240838254345629611037116750206",
                "108725855737991599988774000492808822080"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "signature_type": "Line",
        "source": "https://github.com/dail8859/notepadnext/commit/3e928d91b8fc8bb5c77801ee8652f41e98d12571",
        "deprecated": false,
        "target": {
            "file": "src/lua/src/lvm.c"
        }
    },
    {
        "id": "CVE-2025-52939-2334d450",
        "digest": {
            "function_hash": "258277994694759977460106283175756763753",
            "length": 337.0
        },
        "signature_version": "v1",
        "signature_type": "Function",
        "source": "https://github.com/dail8859/notepadnext/commit/3e928d91b8fc8bb5c77801ee8652f41e98d12571",
        "deprecated": false,
        "target": {
            "function": "luaG_runerror",
            "file": "src/lua/src/ldebug.c"
        }
    },
    {
        "id": "CVE-2025-52939-3b006176",
        "digest": {
            "function_hash": "64633869205412628438747901374518934461",
            "length": 1059.0
        },
        "signature_version": "v1",
        "signature_type": "Function",
        "source": "https://github.com/dail8859/notepadnext/commit/3e928d91b8fc8bb5c77801ee8652f41e98d12571",
        "deprecated": false,
        "target": {
            "function": "luaV_concat",
            "file": "src/lua/src/lvm.c"
        }
    },
    {
        "id": "CVE-2025-52939-d89fc0d5",
        "digest": {
            "line_hashes": [
                "47064890593937786897531178058191810844",
                "138912143874367540401104822690246485002",
                "288992524067399130896317049326973779263",
                "197042422895227100265124330746984136449",
                "302716735206890089776290500244915829848"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "signature_type": "Line",
        "source": "https://github.com/dail8859/notepadnext/commit/3e928d91b8fc8bb5c77801ee8652f41e98d12571",
        "deprecated": false,
        "target": {
            "file": "src/lua/src/ldebug.c"
        }
    }
]