CVE-2016-1622

Status: ModifiedHigh (8.8)—

The Extensions subsystem in Google Chrome before 48.0.2564.109 does not prevent use of the Object.defineProperty method to override intended extension behavior, which allows remote attackers to bypass the Same Origin Policy via crafted JavaScript code.

CVSS

Version: 3.0
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Base score: 8.8

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.32%
Percentile among all scored CVEs: 70
Score date: 10/11/2026

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 (3)

Debian — Debian Linux Google — Chrome Opensuse — Opensuse

CWEs

CWE-264

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2016-1622",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
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    "cvssMetricV30": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "chrome-cve-admin@google.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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        }
      ]
    }
  ],
  "published": "2016-02-14T02:59:00.117",
  "references": [
    {
      "url": "http://googlechromereleases.blogspot.com/2016/02/stable-channel-update_9.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2016-02/msg00104.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2016-02/msg00119.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2016-0241.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://www.debian.org/security/2016/dsa-3486",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/83125",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1035183",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://code.google.com/p/chromium/issues/detail?id=546677",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://codereview.chromium.org/1417513003",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://security.gentoo.org/glsa/201603-09",
      "source": "chrome-cve-admin@google.com"
    },
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      "url": "http://googlechromereleases.blogspot.com/2016/02/stable-channel-update_9.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    },
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    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://codereview.chromium.org/1417513003",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201603-09",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Extensions subsystem in Google Chrome before 48.0.2564.109 does not prevent use of the Object.defineProperty method to override intended extension behavior, which allows remote attackers to bypass the Same Origin Policy via crafted JavaScript code."
    },
    {
      "lang": "es",
      "value": "El subsistema Extensions en Google Chrome en versiones anteriores a 48.0.2564.109 no previene el uso del método Object.defineProperty para sobreescribir el comportamiento de extensión previsto, lo que permite a atacantes remotos eludir la Same Origin Policy a través de código JavaScript manipulado."
    }
  ],
  "lastModified": "2026-06-17T00:42:16.783",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "matchCriteriaId": "4D0431D7-1966-45F0-8154-2C7B99E7D2CF",
              "versionEndIncluding": "48.0.2564.103"
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  ],
  "sourceIdentifier": "chrome-cve-admin@google.com"
}