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CVE-2014-125026

Status: ModifiedCritical (9.8)—

LZ4 bindings use a deprecated C API that is vulnerable to memory corruption, which could lead to arbitrary code execution if called with untrusted user input.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Cloudflare — Golz4

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2014-125026",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2014-125026",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-11T22:59:11.157501Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
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          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@golang.org",
      "affectedData": [
        {
          "vendor": "github.com/cloudflare/golz4",
          "product": "github.com/cloudflare/golz4",
          "versions": [
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              "status": "affected",
              "version": "0",
              "lessThan": "0.0.0-20140711154735-199f5f787806",
              "versionType": "semver"
            }
          ],
          "packageName": "github.com/cloudflare/golz4",
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "programRoutines": [
            {
              "name": "Uncompress"
            }
          ]
        }
      ]
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  ],
  "published": "2022-12-27T22:15:10.883",
  "references": [
    {
      "url": "https://github.com/cloudflare/golz4/commit/199f5f7878062ca17a98e079f2dbe1205e2ed898",
      "tags": [
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        "Third Party Advisory"
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      "source": "security@golang.org"
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      "url": "https://github.com/cloudflare/golz4/issues/5",
      "tags": [
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        "Patch",
        "Third Party Advisory"
      ],
      "source": "security@golang.org"
    },
    {
      "url": "https://pkg.go.dev/vuln/GO-2020-0022",
      "tags": [
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        "Vendor Advisory"
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      "source": "security@golang.org"
    },
    {
      "url": "https://github.com/cloudflare/golz4/commit/199f5f7878062ca17a98e079f2dbe1205e2ed898",
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      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://pkg.go.dev/vuln/GO-2020-0022",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "LZ4 bindings use a deprecated C API that is vulnerable to memory corruption, which could lead to arbitrary code execution if called with untrusted user input."
    },
    {
      "lang": "es",
      "value": "Los enlaces LZ4 utilizan una API C obsoleta que es vulnerable a la corrupción de la memoria, lo que podría provocar la ejecución de código arbitrario si se llama con entradas de usuarios que no son de confianza."
    }
  ],
  "lastModified": "2026-06-17T00:04:18.400",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cloudflare:golz4:*:*:*:*:*:go:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CF7258F9-47C1-4E63-A1FD-5BB5378558BA",
              "versionEndExcluding": "2014-07-11"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@golang.org"
}