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CVE-2011-1657

Status: ModifiedMedium (5)—
Severity5Medium · CVSS 2.0
Exploitation probability5.15 %higher than 92% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

The (1) ZipArchive::addGlob and (2) ZipArchive::addPattern functions in ext/zip/php_zip.c in PHP 5.3.6 allow context-dependent attackers to cause a denial of service (application crash) via certain flags arguments, as demonstrated by (a) GLOB_ALTDIRFUNC and (b) GLOB_APPEND.

CVSS

Base score
5
Version
2.0
Vector
AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
5.15 %
Percentile among all scored CVEs
92
Score date
10/22/2026

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 (1)

PHP — PHP

CWEs

References

Show 28 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2011-1657",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2011-08-25T14:22:44.727",
  "references": [
    {
      "url": "http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://securityreason.com/achievement_securityalert/100",
      "tags": [
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    {
      "url": "http://support.apple.com/kb/HT5130",
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    },
    {
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      "tags": [
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      "source": "cve@mitre.org"
    },
    {
      "url": "http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3/ext/zip/php_zip.c?view=log",
      "tags": [
        "Patch"
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      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:165",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2011/07/01/6",
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      "source": "cve@mitre.org"
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    {
      "url": "http://www.openwall.com/lists/oss-security/2011/07/01/7",
      "source": "cve@mitre.org"
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    {
      "url": "http://www.openwall.com/lists/oss-security/2011/07/01/8",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/519385/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/49252",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugs.php.net/bug.php?id=54681",
      "tags": [
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      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/69320",
      "source": "cve@mitre.org"
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    {
      "url": "http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://securityreason.com/achievement_securityalert/100",
      "tags": [
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    },
    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://support.apple.com/kb/HT5130",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://svn.php.net/viewvc/?view=revision&revision=310814",
      "tags": [
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    },
    {
      "url": "http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3/ext/zip/php_zip.c?view=log",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:165",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2011/07/01/6",
      "tags": [
        "Patch"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2011/07/01/7",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2011/07/01/8",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/519385/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/49252",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugs.php.net/bug.php?id=54681",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/69320",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-399"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The (1) ZipArchive::addGlob and (2) ZipArchive::addPattern functions in ext/zip/php_zip.c in PHP 5.3.6 allow context-dependent attackers to cause a denial of service (application crash) via certain flags arguments, as demonstrated by (a) GLOB_ALTDIRFUNC and (b) GLOB_APPEND."
    },
    {
      "lang": "es",
      "value": "Las funciones (1) ZipArchive::addGlob y (2) ZipArchive::addPattern en ext/zip/php_zip.c en PHP v5.3.6 permite a atacantes dependientes del contexto provocar una denegación de servicio (caída de la aplicación) a través de ciertos argumentos bandera, como se demostró por (a) GLOB_ALTDIRFUNC y (b) GLOB_APPEND."
    }
  ],
  "lastModified": "2026-06-16T23:29:45.703",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:php:php:5.3.6:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9EC938DB-E066-407F-BDF8-61A1C41136F7"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}