CVE-2026-40200_CVE-2026-40200

8.1 / 10

HIGH

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Description

An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).

Basic Information

ID CVE-2026-40200

Source mitre

Published Apr 10, 2026 at 00:00

Modified Apr 10, 2026 at 17:17

Affected Product

Vendor musl-libc

Product musl

Version 0.7.10

Affected Versions musl-libc musl 0.7.10

CWE Classification

CWE-670

References

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    "lastseen": "",
    "description": "An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).",
    "published": "2026-04-10T00:00:00.000Z",
    "modified": "2026-04-10T17:17:25.925Z",
    "type": "cve",
    "title": "CVE-2026-40200",
    "source": "mitre",
    "references": "https://musl.libc.org/releases.html\nhttps://www.openwall.com/lists/oss-security/2026/04/10/13",
    "id": "CVE-2026-40200",
    "bulletinFamily": "",
    "cwe": [
        "CWE-670"
    ],
    "cvelist": null,
    "sourceData": "musl-libc musl 0.7.10",
    "sourceHref": "",
    "cvss": {
        "score": 8.1,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
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            "baseScore": 0,
            "baseSeverity": "",
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            "privilegesRequired": "",
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            "confidentialityImpact": "",
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            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "musl",
    "version": "0.7.10",
    "vendor": "musl-libc",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
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    "ai_score": 0
}