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CVE-2016-9138

Status: ModifiedCritical (9.8)—

PHP through 5.6.27 and 7.x through 7.0.12 mishandles property modification during __wakeup processing, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted serialized data, as demonstrated by Exception::__toString with DateInterval::__wakeup.

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)

PHP — PHP

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2016-9138",
  "cveTags": [],
  "metrics": {
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        "source": "nvd@nist.gov",
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          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": true,
        "impactScore": 6.4,
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        "obtainAllPrivilege": false,
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        "obtainUserPrivilege": false,
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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      "affectedData": [
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  "published": "2017-01-04T20:59:00.433",
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      "url": "http://www.openwall.com/lists/oss-security/2016/11/01/2",
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      "description": [
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          "lang": "en",
          "value": "CWE-416"
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      "lang": "en",
      "value": "PHP through 5.6.27 and 7.x through 7.0.12 mishandles property modification during __wakeup processing, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted serialized data, as demonstrated by Exception::__toString with DateInterval::__wakeup."
    },
    {
      "lang": "es",
      "value": "PHP hasta la versión 5.6.27 y 7.x hasta la versión 7.0.12 no maneja adecuadamente la modificación de propiedades durante el procesamiento de __wakeup, lo que permite a atacantes remotos provocar una denegación de servicio o posiblemente tener otro impacto no especificado a través de datos serializados manipulados como se demuestra por Exception::__toString con DateInterval::__wakeup."
    }
  ],
  "lastModified": "2026-06-17T00:55:34.960",
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