CVE-2011-1938

Status: ModifiedHigh (7.5)—Exploit

Severity7.5High · CVSS 2.0

Exploitation probability23 %higher than 98% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitAvailablePublished on Exploit-DB

Stack-based buffer overflow in the socket_connect function in ext/sockets/sockets.c in PHP 5.3.3 through 5.3.6 might allow context-dependent attackers to execute arbitrary code via a long pathname for a UNIX socket.

CVSS

Base score: 7.5
Version: 2.0
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 23 %
Percentile among all scored CVEs: 98
Score date: 10/21/2026

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).

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · PHP 5.3.6 - Local Buffer Overflow (ROP) (7/4/2011)
Published on Exploit-DB · PHP 5.3.5 - 'socket_connect()' Local Buffer Overflow (5/25/2011)

Affected technologies (1)

PHP — PHP

CWEs

CWE-119

References

Show 36 references

Raw JSON (NVD)

Show

{
  "id": "CVE-2011-1938",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "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"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
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      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2011-05-31T20:55:05.220",
  "references": [
    {
      "url": "http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html",
      "source": "secalert@redhat.com"
    },
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    {
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    {
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    {
      "url": "http://www.securityfocus.com/bid/49241",
      "source": "secalert@redhat.com"
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    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/67606",
      "source": "secalert@redhat.com"
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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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    {
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    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Stack-based buffer overflow in the socket_connect function in ext/sockets/sockets.c in PHP 5.3.3 through 5.3.6 might allow context-dependent attackers to execute arbitrary code via a long pathname for a UNIX socket."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de búfer basado en pila en la función socket_connect en ext/sockets/sockets.c en PHP v5.3.3 a v5.3.6 podría permitir a atacantes dependientes de contexto ejecutar código de su elección a través de una ruta larga para un socket UNIX."
    }
  ],
  "lastModified": "2026-06-16T23:30:25.823",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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            },
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}