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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-120457",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-02T15:45:31.200283Z",
                "version": "2.0.3"
              },
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          "dateUpdated": "2026-11-02T15:46:06.742Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://hackmd.io/@haindpwn/libaec-se-decode-fs-signedness-oob-read"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "libaec",
          "repo": "https://github.com/Deutsches-Klimarechenzentrum/libaec",
          "vendor": "Deutsches Klimarechenzentrum",
          "versions": [
            {
              "lessThanOrEqual": "1.1.7",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "HaiND from the Post and Telecommunication Institute of Technology"
        }
      ],
      "datePublic": "2026-11-01T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "libaec through 1.1.7 contains an out-of-bounds read vulnerability in m_se_decode() in src/decode.c that allows attackers to bypass a signed bounds check via an overlong fundamental sequence. Attackers can supply a crafted CCSDS 121.0/SZIP stream with 2^31 or more zero bits to crash the decoder or leak adjacent memory into decoded samples."
        }
      ],
      "metrics": [
        {
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            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          },
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        },
        {
          "cvssV3_1": {
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            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:H",
            "version": "3.1"
          },
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-196",
              "description": "Unsigned to Signed Conversion Error",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-02T14:29:13.799Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
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      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/Deutsches-Klimarechenzentrum/libaec/issues/64"
        },
        {
          "tags": [
            "issue-tracking",
            "patch"
          ],
          "url": "https://github.com/Deutsches-Klimarechenzentrum/libaec/pull/66"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/Deutsches-Klimarechenzentrum/libaec/blob/v1.1.7/src/decode.c#L556-L586"
        },
        {
          "name": "libaec v1.1.7 Release Notes",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/Deutsches-Klimarechenzentrum/libaec/releases/tag/v1.1.7"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://hackmd.io/@haindpwn/libaec-se-decode-fs-signedness-oob-read"
        },
        {
          "name": "VulnCheck Advisory: libaec through 1.1.7 Out-of-Bounds Read via m_se_decode() Second Extension Decoder",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/libaec-through-1.1.7-out-of-bounds-read-via-m-se-decode-second-extension-decoder"
        }
      ],
      "title": "libaec through 1.1.7 Out-of-Bounds Read via m_se_decode() Second Extension Decoder",
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        "engine": "vulncheck-endgame"
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  },
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-120457",
    "datePublished": "2026-11-02T14:29:13.799Z",
    "dateReserved": "2026-11-02T12:42:22.624Z",
    "dateUpdated": "2026-11-02T15:46:06.742Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}