{
    "id": "CVE-2020-15900",
    "published": "2020-07-28 16:15:12",
    "last_modified": "2026-06-17 02:57:22",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-191",
    "description": "A memory corruption issue was found in Artifex Ghostscript 9.50 and 9.52. Use of a non-standard PostScript operator can allow overriding of file access controls. The 'rsearch' calculation for the 'post' size resulted in a size that was too large, and could underflow to max uint32_t. This was fixed in commit 5d499272b95a6b890a1397e11d20937de000d31b.",
    "epss_score": "0.05186",
    "epss_percentile": "0.92243",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-07 18:17:22",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "artifex",
            "product": "ghostscript"
        },
        {
            "vendor": "canonical",
            "product": "ubuntu_linux"
        },
        {
            "vendor": "opensuse",
            "product": "leap"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://git.ghostscript.com/?p=ghostpdl.git%3Ba=log",
        "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00004.html",
        "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00006.html",
        "https://artifex.com/security-advisories/CVE-2020-15900",
        "https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=5d499272b95a6b890a1397e11d20937de000d31b",
        "https://github.com/ArtifexSoftware/ghostpdl/commit/5d499272b95a6b890a1397e11d20937de000d31b",
        "https://github.com/ArtifexSoftware/ghostpdl/commits/master/psi/zstring.c",
        "https://security.gentoo.org/glsa/202008-20",
        "https://usn.ubuntu.com/4445-1/",
        "http://git.ghostscript.com/?p=ghostpdl.git%3Ba=log",
        "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00004.html",
        "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00006.html",
        "https://artifex.com/security-advisories/CVE-2020-15900",
        "https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=5d499272b95a6b890a1397e11d20937de000d31b",
        "https://github.com/ArtifexSoftware/ghostpdl/commit/5d499272b95a6b890a1397e11d20937de000d31b",
        "https://github.com/ArtifexSoftware/ghostpdl/commits/master/psi/zstring.c",
        "https://security.gentoo.org/glsa/202008-20",
        "https://usn.ubuntu.com/4445-1/"
    ]
}