PostgreSQL libpq lo_* functions let server superuser overwrite client stack memory_MS:CVE-2026-6477

{
    "lastseen": "2026-05-18T09:15:24",
    "description": "",
    "published": "2026-05-16T08:04:33",
    "modified": "2026-05-17T21:40:42",
    "type": "mscve",
    "title": "PostgreSQL libpq lo_* functions let server superuser overwrite client stack memory",
    "source": "",
    "references": "",
    "id": "MS:CVE-2026-6477",
    "bulletinFamily": "microsoft",
    "cwe": null,
    "cvelist": [
        "CVE-2026-6477"
    ],
    "sourceData": "",
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    "cvss": {
        "score": 8.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
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        "baseScore": 0,
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        "privilegesRequired": "",
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        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
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            "baseScore": 0,
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            "availabilityImpact": ""
        }
    },
    "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-6477",
    "category_name": "News",
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