{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2022-31481",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-31481",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2022-06-06T16:38:51.453Z",
    "updatedAt": "2024-09-16T16:12:27.210Z",
    "importedAt": "2026-10-24T01:56:40.826Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Remote Code Execution via buffer overflow in firmware update process",
      "summary": "An unauthenticated attacker can send a specially crafted update file to the device that can overflow a buffer. This vulnerability impacts products based on HID Mercury Intelligent Controllers LP1501, LP1502, LP2500, LP4502, and EP4502 which contain firmware versions prior to 1.302 for the LP series and 1.296 for the EP series. The overflowed data can allow the attacker to manipulate the “normal” code execution to that of their choosing. An attacker with this level of access on the device can monitor all communications sent to and from this device, modify onboard relays, change configuration files, or cause the device to become unstable.",
      "affected": [
        {
          "vendor": "LenelS2",
          "product": "LNL-X2210",
          "versions": [
            {
              "version": "ALL",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.302"
            }
          ]
        },
        {
          "vendor": "LenelS2",
          "product": "LNL-X2220",
          "versions": [
            {
              "version": "ALL",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.302"
            }
          ]
        },
        {
          "vendor": "LenelS2",
          "product": "LNL-X3300",
          "versions": [
            {
              "version": "ALL",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.302"
            }
          ]
        },
        {
          "vendor": "LenelS2",
          "product": "LNL-X4420",
          "versions": [
            {
              "version": "ALL",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.302"
            }
          ]
        },
        {
          "vendor": "LenelS2",
          "product": "LNL-4420",
          "versions": [
            {
              "version": "ALL",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.296"
            }
          ]
        },
        {
          "vendor": "LenelS2",
          "product": "S2-LP-1501",
          "versions": [
            {
              "version": "ALL",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.302"
            }
          ]
        },
        {
          "vendor": "LenelS2",
          "product": "S2-LP-1502",
          "versions": [
            {
              "version": "ALL",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.302"
            }
          ]
        },
        {
          "vendor": "LenelS2",
          "product": "S2-LP-2500",
          "versions": [
            {
              "version": "ALL",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.302"
            }
          ]
        },
        {
          "vendor": "LenelS2",
          "product": "S2-LP-4502",
          "versions": [
            {
              "version": "ALL",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.302"
            }
          ]
        },
        {
          "vendor": "HID Mercury",
          "product": "LP1501",
          "versions": [
            {
              "version": "ALL",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.302"
            }
          ]
        },
        {
          "vendor": "HID Mercury",
          "product": "LP1502",
          "versions": [
            {
              "version": "ALL",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.302"
            }
          ]
        },
        {
          "vendor": "HID Mercury",
          "product": "LP2500",
          "versions": [
            {
              "version": "ALL",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.302"
            }
          ]
        },
        {
          "vendor": "HID Mercury",
          "product": "LP4502",
          "versions": [
            {
              "version": "ALL",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.302"
            }
          ]
        },
        {
          "vendor": "HID Mercury",
          "product": "EP4502",
          "versions": [
            {
              "version": "ALL",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.296"
            }
          ]
        }
      ]
    }
  }
}