{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "libXfont2",
          "product": "libXfont2",
          "repo": "https://gitlab.freedesktop.org/xorg/lib/libxfont",
          "vendor": "X.Org",
          "versions": [
            {
              "lessThan": "2.0.8",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.org:libxfont2:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "2.0.8",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Anonymous working with Trend Micro Zero Day Initiative."
        }
      ],
      "datePublic": "2026-07-08T09:08:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "A heap bufferflow in pcfReadFont() due to missing glyph bounds checking\u0026nbsp;in libXfont2 before 2.0.8\u0026nbsp; allows attackers authenticated as X client to execute code within the X server."
            }
          ],
          "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."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-234",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-234 Hijacking a privileged process"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122 Heap-based buffer overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-08T09:12:51.480Z",
        "orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
        "shortName": "suse"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://gitlab.freedesktop.org/xorg/lib/libxfont/-/commit/b4389e0b1d84a690b819bb27b1439968811a3674"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.openwall.com/lists/oss-security/2026/07/08/1"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "libXfont2 PCF Font Parsing Heap Buffer Overflow",
      "x_generator": {
        "engine": "Vulnogram 1.0.2"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
    "assignerShortName": "suse",
    "cveId": "CVE-2026-56002",
    "datePublished": "2026-07-08T09:12:51.480Z",
    "dateReserved": "2026-06-18T09:26:55.988Z",
    "dateUpdated": "2026-07-08T09:12:51.480Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-56002\",\"sourceIdentifier\":\"meissner@suse.de\",\"published\":\"2026-07-08T10:16:23.327\",\"lastModified\":\"2026-07-08T10:16:23.327\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"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.\"}],\"affected\":[{\"source\":\"meissner@suse.de\",\"affectedData\":[{\"vendor\":\"X.Org\",\"product\":\"libXfont2\",\"defaultStatus\":\"unaffected\",\"packageName\":\"libXfont2\",\"repo\":\"https://gitlab.freedesktop.org/xorg/lib/libxfont\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"2.0.8\",\"versionType\":\"rpm\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"meissner@suse.de\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":8.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":6.0}]},\"weaknesses\":[{\"source\":\"meissner@suse.de\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-122\"}]}],\"references\":[{\"url\":\"https://gitlab.freedesktop.org/xorg/lib/libxfont/-/commit/b4389e0b1d84a690b819bb27b1439968811a3674\",\"source\":\"meissner@suse.de\"},{\"url\":\"https://www.openwall.com/lists/oss-security/2026/07/08/1\",\"source\":\"meissner@suse.de\"}]}}"
  }
}