{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "libgphoto2",
          "vendor": "gphoto",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 2.5.33"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, two functions in camlibs/ptp2/ptp-pack.c accept a data pointer but no length parameter, performing unbounded reads. Their callers in ptp_unpack_EOS_events() have xsize available but never pass it, leaving both functions unable to validate reads against the actual buffer boundary. Commit 1817ecead20c2aafa7549dac9619fe38f47b2f53 patches the issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125: Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-17T23:11:11.073Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/gphoto/libgphoto2/security/advisories/GHSA-hq94-cp6h-3gjp",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/gphoto/libgphoto2/security/advisories/GHSA-hq94-cp6h-3gjp"
        },
        {
          "name": "https://github.com/gphoto/libgphoto2/commit/1817ecead20c2aafa7549dac9619fe38f47b2f53",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/gphoto/libgphoto2/commit/1817ecead20c2aafa7549dac9619fe38f47b2f53"
        }
      ],
      "source": {
        "advisory": "GHSA-hq94-cp6h-3gjp",
        "discovery": "UNKNOWN"
      },
      "title": "libgphoto2 has OOB read in ptp_unpack_EOS_ImageFormat() and ptp_unpack_EOS_CustomFuncEx() due to missing length parameter in ptp-pack.c"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-40333",
    "datePublished": "2026-04-17T23:11:11.073Z",
    "dateReserved": "2026-04-10T22:50:01.357Z",
    "dateUpdated": "2026-04-17T23:11:11.073Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-40333\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-04-18T00:16:37.120\",\"lastModified\":\"2026-04-18T00:16:37.120\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, two functions in camlibs/ptp2/ptp-pack.c accept a data pointer but no length parameter, performing unbounded reads. Their callers in ptp_unpack_EOS_events() have xsize available but never pass it, leaving both functions unable to validate reads against the actual buffer boundary. Commit 1817ecead20c2aafa7549dac9619fe38f47b2f53 patches the issue.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H\",\"baseScore\":6.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"PHYSICAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":0.9,\"impactScore\":5.2}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"references\":[{\"url\":\"https://github.com/gphoto/libgphoto2/commit/1817ecead20c2aafa7549dac9619fe38f47b2f53\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/gphoto/libgphoto2/security/advisories/GHSA-hq94-cp6h-3gjp\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}