{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-56002", "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb", "state": "PUBLISHED", "assignerShortName": "suse", "dateReserved": "2026-06-18T09:26:55.988Z", "datePublished": "2026-07-08T09:12:51.480Z", "dateUpdated": "2026-07-08T09:12:51.480Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb", "shortName": "suse", "dateUpdated": "2026-07-08T09:12:51.480Z"}, "title": "libXfont2 PCF Font Parsing Heap Buffer Overflow", "datePublic": "2026-07-08T09:08:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-122", "description": "CWE-122 Heap-based buffer overflow", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-234", "descriptions": [{"lang": "en", "value": "CAPEC-234 Hijacking a privileged process"}]}], "affected": [{"vendor": "X.Org", "product": "libXfont2", "packageName": "libXfont2", "repo": "https://gitlab.freedesktop.org/xorg/lib/libxfont", "versions": [{"status": "affected", "version": "0", "lessThan": "2.0.8", "versionType": "rpm"}], "defaultStatus": "unaffected"}], "cpeApplicability": [{"operator": "OR", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:x.org:libxfont2:*:*:*:*:*:*:*:*", "versionStartIncluding": "0", "versionEndExcluding": "2.0.8"}]}]}], "descriptions": [{"lang": "en", "value": "A heap bufferflow in pcfReadFont() due to missing glyph bounds checking\u00a0in libXfont2 before 2.0.8\u00a0 allows attackers authenticated as X client to execute code within the X server.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "A heap bufferflow in pcfReadFont() due to missing glyph bounds checking in libXfont2 before 2.0.8  allows attackers authenticated as X client to execute code within the X server."}]}], "references": [{"url": "https://gitlab.freedesktop.org/xorg/lib/libxfont/-/commit/b4389e0b1d84a690b819bb27b1439968811a3674", "tags": ["patch"]}, {"url": "https://www.openwall.com/lists/oss-security/2026/07/08/1", "tags": ["vendor-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 8.5, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"}}], "credits": [{"lang": "en", "value": "Anonymous working with Trend Micro Zero Day Initiative.", "type": "finder"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}}}

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