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    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-18497",
        "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "state": "PUBLISHED",
        "assignerShortName": "certcc",
        "dateReserved": "2026-07-31T15:58:31.185Z",
        "datePublished": "2026-08-07T14:19:42.854Z",
        "dateUpdated": "2026-08-12T13:51:47.080Z"
    },
    "containers": {
        "cna": {
            "title": "The nothings stb TrueType library contains a heap buffer overflow vulnerability",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A heap-buffer-overflow vulnerability exists in the nothings stb TrueType library, up to version 1.26, that is used for parsing TrueType font files. The vulnerability exists in the stbtt__GetGlyphShapeTT() function within the nothings stb_truetype.h library when parsing malformed TTF (TrueType Font) files. The vulnerability resides in the glyph data parsing path.\r\n\r\nAn attacker can craft a malformed TTF file with an inflated endPtsOfContours value and truncate the remaining glyph data. When an application utilizing stb_truetype.h (such as various game engines or graphics software) attempts to load, bake, or render this malformed font via stbtt_GetGlyphShape(), the parser will attempt to read past the end of the glyph data buffer, triggering the out-of-bounds read."
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "affected": [
                {
                    "vendor": "Sean Barrett (nothings)",
                    "product": "nothings stb",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "1.26"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-122: Heap-based Buffer Overflow"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://cwe.mitre.org/data/definitions/122.html"
                },
                {
                    "url": "https://github.com/nothings/stb"
                },
                {
                    "url": "https://github.com/nothings/stb/issues/1905"
                },
                {
                    "url": "https://kb.cert.org/vuls/id/987105"
                }
            ],
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                "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-18497"
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            "providerMetadata": {
                "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
                "shortName": "certcc",
                "dateUpdated": "2026-08-07T14:19:42.854Z"
            }
        },
        "adp": [
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://www.kb.cert.org/vuls/id/987105"
                    }
                ],
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                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2026-08-07T15:17:50.021Z"
                }
            },
            {
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "type": "CWE",
                                "cweId": "CWE-122",
                                "lang": "en",
                                "description": "CWE-122 Heap-based Buffer Overflow"
                            }
                        ]
                    }
                ],
                "references": [
                    {
                        "url": "https://github.com/nothings/stb/issues/1905",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 7.1,
                            "attackVector": "LOCAL",
                            "baseSeverity": "HIGH",
                            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
                            "integrityImpact": "NONE",
                            "userInteraction": "REQUIRED",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "HIGH"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-07T17:58:51.313628Z",
                                "id": "CVE-2026-18497",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
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                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-08-12T13:51:47.080Z"
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}