Vulnerability-Lookup

CVE-2022-41940 (GCVE-0-2022-41940)

Vulnerability from cvelistv5 – Published: 2022-11-22 00:00 – Updated: 2025-04-22 16:02

Title

Uncaught exception in engine.io

Summary

Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This impacts all the users of the engine.io package, including those who uses depending packages like socket.io. There is no known workaround except upgrading to a safe version. There are patches for this issue released in versions 3.6.1 and 6.2.1.

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-22 15:41 UTC

CWE

CWE-248 - Uncaught Exception

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7814 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/socketio/engine.io/security/ad…
https://github.com/socketio/engine.io/commit/425e…
https://github.com/socketio/engine.io/commit/83c4…

Impacted products

1 product

Vendor	Product	Version	CPE status
socketio	engine.io	Affected: < 3.6.1 Affected: >= 4.0.0, < 6.2.1	guessed

Show details on NVD website

JSON

To clipboard

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CNVD-2022-85553

Vulnerability from cnvd - Published: 2022-12-07

Title

Socketio Engine.IO拒绝服务漏洞

Description

Engine.IO是Socket.IO基于传输的跨浏览器/跨设备双向通信层的实现。 Socketio Engine.IO 3.6.1之前的版本、4.0.0及其之后，6.2.1之前版本存在拒绝服务漏洞，该漏洞源于未对输入的错误消息做正确的处理，攻击者可利用漏洞发起拒绝服务攻击。

Severity

高

Patch Name

Socketio Engine.IO拒绝服务漏洞的补丁

Patch Description

Engine.IO是Socket.IO基于传输的跨浏览器/跨设备双向通信层的实现。 Socketio Engine.IO 3.6.1之前的版本、4.0.0及其之后，6.2.1之前版本存在拒绝服务漏洞，该漏洞源于未对输入的错误消息做正确的处理，攻击者可利用漏洞发起拒绝服务攻击。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新：https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w

Reference

https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085

Impacted products

Name
['Socketio Engine.IO <3.6.1', 'Socketio Engine.IO >=4.0.0，<6.2.1']

Show details on source website

JSON

To clipboard

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  "number": "CNVD-2022-85553",
  "openTime": "2022-12-07",
  "patchDescription": "Engine.IO\u662fSocket.IO\u57fa\u4e8e\u4f20\u8f93\u7684\u8de8\u6d4f\u89c8\u5668/\u8de8\u8bbe\u5907\u53cc\u5411\u901a\u4fe1\u5c42\u7684\u5b9e\u73b0\u3002\r\n\r\nSocketio Engine.IO 3.6.1\u4e4b\u524d\u7684\u7248\u672c\u30014.0.0\u53ca\u5176\u4e4b\u540e\uff0c6.2.1\u4e4b\u524d\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u5bf9\u8f93\u5165\u7684\u9519\u8bef\u6d88\u606f\u505a\u6b63\u786e\u7684\u5904\u7406\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u53d1\u8d77\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Socketio Engine.IO\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Socketio Engine.IO \u003c3.6.1",
      "Socketio Engine.IO \u003e=4.0.0\uff0c\u003c6.2.1"
    ]
  },
  "referenceLink": "https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085",
  "serverity": "\u9ad8",
  "submitTime": "2022-11-24",
  "title": "Socketio Engine.IO\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

FKIE_CVE-2022-41940

Vulnerability from fkie_nvd - Published: 2022-11-22 01:15 - Updated: 2026-06-17 05:04

Severity

7.1 (High) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6	Patch, Third Party Advisory
security-advisories@github.com	https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085	Patch, Third Party Advisory
security-advisories@github.com	https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w	Exploit, Third Party Advisory

Impacted products

	Vendor	Product	Version
	socket	engine.io	*
	socket	engine.io	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "engine.io",
          "vendor": "socketio",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.6.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.0.0, \u003c 6.2.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:socket:engine.io:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "65BB103B-09C2-4AD2-9F5A-74F7F1F933E1",
              "versionEndExcluding": "3.6.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:socket:engine.io:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "3E0FC268-7941-4A4C-9D5E-D34D0592B40A",
              "versionEndExcluding": "6.2.1",
              "versionStartIncluding": "4.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This impacts all the users of the engine.io package, including those who uses depending packages like socket.io. There is no known workaround except upgrading to a safe version. There are patches for this issue released in versions 3.6.1 and 6.2.1."
    },
    {
      "lang": "es",
      "value": "Engine.IO es la implementaci\u00f3n de una capa de comunicaci\u00f3n bidireccional entre navegadores y dispositivos basada en transporte para Socket.IO. Una solicitud HTTP especialmente manipulada puede desencadenar una excepci\u00f3n no detectada en el servidor Engine.IO, matando as\u00ed el proceso Node.js. Esto afecta a todos los usuarios del paquete Engine.io, incluidos aquellos que utilizan paquetes dependientes como socket.io. No existe ningun workaround alternativo excepto actualizar a una versi\u00f3n segura. Hay parches para este problema publicados en las versiones 3.6.1 y 6.2.1."
    }
  ],
  "id": "CVE-2022-41940",
  "lastModified": "2026-06-17T05:04:06.203",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-41940",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-04-22T15:41:28.524567Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2022-11-22T01:15:37.847",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-248"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-R7QP-CFHV-P84W

Vulnerability from github – Published: 2022-11-21 23:55 – Updated: 2022-12-08 00:47

Summary

Uncaught exception in engine.io

Details

Impact

A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process.

events.js:292
      throw er; // Unhandled 'error' event
      ^

Error: read ECONNRESET
    at TCP.onStreamRead (internal/stream_base_commons.js:209:20)
Emitted 'error' event on Socket instance at:
    at emitErrorNT (internal/streams/destroy.js:106:8)
    at emitErrorCloseNT (internal/streams/destroy.js:74:3)
    at processTicksAndRejections (internal/process/task_queues.js:80:21) {
  errno: -104,
  code: 'ECONNRESET',
  syscall: 'read'
}

This impacts all the users of the engine.io package, including those who uses depending packages like socket.io.

Patches

A fix has been released today (2022/11/20):

Version range	Fixed version
`engine.io@3.x.y`	`3.6.1`
`engine.io@6.x.y`	`6.2.1`

For socket.io users:

Version range	`engine.io` version	Needs minor update?
`socket.io@4.5.x`	`~6.2.0`	`npm audit fix` should be sufficient
`socket.io@4.4.x`	`~6.1.0`	Please upgrade to `socket.io@4.5.x`
`socket.io@4.3.x`	`~6.0.0`	Please upgrade to `socket.io@4.5.x`
`socket.io@4.2.x`	`~5.2.0`	Please upgrade to `socket.io@4.5.x`
`socket.io@4.1.x`	`~5.1.1`	Please upgrade to `socket.io@4.5.x`
`socket.io@4.0.x`	`~5.0.0`	Please upgrade to `socket.io@4.5.x`
`socket.io@3.1.x`	`~4.1.0`	Please upgrade to `socket.io@4.5.x` (see here)
`socket.io@3.0.x`	`~4.0.0`	Please upgrade to `socket.io@4.5.x` (see here)
`socket.io@2.5.0`	`~3.6.0`	`npm audit fix` should be sufficient
`socket.io@2.4.x` and below	`~3.5.0`	Please upgrade to `socket.io@2.5.0`

Workarounds

There is no known workaround except upgrading to a safe version.

For more information

If you have any questions or comments about this advisory:

Open an issue in engine.io

Thanks to Jonathan Neve for the responsible disclosure.

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "engine.io"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.6.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "engine.io"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "6.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-41940"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-248"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-11-21T23:55:41Z",
    "nvd_published_at": "2022-11-22T01:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nA specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process.\n\n```\nevents.js:292\n      throw er; // Unhandled \u0027error\u0027 event\n      ^\n\nError: read ECONNRESET\n    at TCP.onStreamRead (internal/stream_base_commons.js:209:20)\nEmitted \u0027error\u0027 event on Socket instance at:\n    at emitErrorNT (internal/streams/destroy.js:106:8)\n    at emitErrorCloseNT (internal/streams/destroy.js:74:3)\n    at processTicksAndRejections (internal/process/task_queues.js:80:21) {\n  errno: -104,\n  code: \u0027ECONNRESET\u0027,\n  syscall: \u0027read\u0027\n}\n```\n\nThis impacts all the users of the [`engine.io`](https://www.npmjs.com/package/engine.io) package, including those who uses depending packages like [`socket.io`](https://www.npmjs.com/package/socket.io).\n\n### Patches\n\nA fix has been released today (2022/11/20):\n\n| Version range     | Fixed version |\n|-------------------|---------------|\n| `engine.io@3.x.y` | `3.6.1`       |\n| `engine.io@6.x.y` | `6.2.1`       |\n\nFor `socket.io` users:\n\n| Version range               | `engine.io` version | Needs minor update?                                                                                    |\n|-----------------------------|---------------------|--------------------------------------------------------------------------------------------------------|\n| `socket.io@4.5.x`           | `~6.2.0`            | `npm audit fix` should be sufficient                                                                   |\n| `socket.io@4.4.x`           | `~6.1.0`            | Please upgrade to `socket.io@4.5.x`                                                                    |\n| `socket.io@4.3.x`           | `~6.0.0`            | Please upgrade to `socket.io@4.5.x`                                                                    |\n| `socket.io@4.2.x`           | `~5.2.0`            | Please upgrade to `socket.io@4.5.x`                                                                    |\n| `socket.io@4.1.x`           | `~5.1.1`            | Please upgrade to `socket.io@4.5.x`                                                                    |\n| `socket.io@4.0.x`           | `~5.0.0`            | Please upgrade to `socket.io@4.5.x`                                                                    |\n| `socket.io@3.1.x`           | `~4.1.0`            | Please upgrade to `socket.io@4.5.x` (see [here](https://socket.io/docs/v4/migrating-from-3-x-to-4-0/)) |\n| `socket.io@3.0.x`           | `~4.0.0`            | Please upgrade to `socket.io@4.5.x` (see [here](https://socket.io/docs/v4/migrating-from-3-x-to-4-0/)) |\n| `socket.io@2.5.0`           | `~3.6.0`            | `npm audit fix` should be sufficient                                                                   |\n| `socket.io@2.4.x` and below | `~3.5.0`            | Please upgrade to `socket.io@2.5.0`                                                                    |\n\n### Workarounds\n\nThere is no known workaround except upgrading to a safe version.\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n* Open an issue in [`engine.io`](https://github.com/socketio/engine.io)\n\nThanks to [Jonathan Neve](https://github.com/jonathanneve) for the responsible disclosure.\n",
  "id": "GHSA-r7qp-cfhv-p84w",
  "modified": "2022-12-08T00:47:24Z",
  "published": "2022-11-21T23:55:41Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41940"
    },
    {
      "type": "WEB",
      "url": "https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/socketio/engine.io"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Uncaught exception in engine.io"
}

GSD-2022-41940

Vulnerability from gsd - Updated: 2023-12-13 01:19

Details

Aliases

CVE-2022-41940

Aliases

CVE-2022-41940

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2022-41940",
    "id": "GSD-2022-41940"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-41940"
      ],
      "details": "Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This impacts all the users of the engine.io package, including those who uses depending packages like socket.io. There is no known workaround except upgrading to a safe version. There are patches for this issue released in versions 3.6.1 and 6.2.1.",
      "id": "GSD-2022-41940",
      "modified": "2023-12-13T01:19:33.057920Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-41940",
        "STATE": "PUBLIC",
        "TITLE": "Uncaught exception in engine.io "
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "engine.io",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003c 3.6.1"
                        },
                        {
                          "version_value": "\u003e= 4.0.0, \u003c 6.2.1"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "socketio"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This impacts all the users of the engine.io package, including those who uses depending packages like socket.io. There is no known workaround except upgrading to a safe version. There are patches for this issue released in versions 3.6.1 and 6.2.1."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:H",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-248: Uncaught Exception"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w",
            "refsource": "CONFIRM",
            "url": "https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w"
          },
          {
            "name": "https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6",
            "refsource": "MISC",
            "url": "https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6"
          },
          {
            "name": "https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085",
            "refsource": "MISC",
            "url": "https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-r7qp-cfhv-p84w",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c3.6.1||\u003e=4.0.0 \u003c6.2.1",
          "affected_versions": "All versions before 3.6.1, all versions starting from 4.0.0 before 6.2.1",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-248",
            "CWE-937"
          ],
          "date": "2022-11-26",
          "description": "Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This impacts all the users of the engine.io package, including those who uses depending packages like socket.io. There is no known workaround except upgrading to a safe version. There are patches for this issue released in versions 3.6.1 and 6.2.1.",
          "fixed_versions": [
            "3.6.1",
            "6.2.1"
          ],
          "identifier": "CVE-2022-41940",
          "identifiers": [
            "CVE-2022-41940",
            "GHSA-r7qp-cfhv-p84w"
          ],
          "not_impacted": "All versions starting from 3.6.1 before 4.0.0, all versions starting from 6.2.1",
          "package_slug": "npm/engine.io",
          "pubdate": "2022-11-22",
          "solution": "Upgrade to versions 3.6.1, 6.2.1 or above.",
          "title": "Uncaught Exception",
          "urls": [
            "https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w",
            "https://github.com/advisories/GHSA-r7qp-cfhv-p84w"
          ],
          "uuid": "d3d9aacd-81c9-456e-9e73-116237e4563c"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:socket:engine.io:*:*:*:*:*:node.js:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.6.1",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:socket:engine.io:*:*:*:*:*:node.js:*:*",
                "cpe_name": [],
                "versionEndExcluding": "6.2.1",
                "versionStartIncluding": "4.0.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2022-41940"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This impacts all the users of the engine.io package, including those who uses depending packages like socket.io. There is no known workaround except upgrading to a safe version. There are patches for this issue released in versions 3.6.1 and 6.2.1."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-248"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085"
            },
            {
              "name": "https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6"
            },
            {
              "name": "https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w",
              "refsource": "CONFIRM",
              "tags": [
                "Exploit",
                "Third Party Advisory"
              ],
              "url": "https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-11-26T03:26Z",
      "publishedDate": "2022-11-22T01:15Z"
    }
  }
}

RHSA-2023:3954

Vulnerability from csaf_redhat - Published: 2023-06-29 20:07 - Updated: 2026-11-07 05:41

Summary

Red Hat Security Advisory: Red Hat Fuse 7.12 release and security update

Severity

Critical

Scope

27 vulnerabilities in this advisory, including CVE-2022-41940.

CVE-2022-41940

A flaw was found in engine.io. The Socket.IO Engine.IO is vulnerable to a denial of service caused by an uncaught exception flaw. By sending a specially-crafted HTTP request, a remote, authenticated attacker can cause the Node.js process to crash, resulting in a denial of service.

6.5 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Fixed: 1 product

https://access.redhat.com/errata/RHSA-2023:3954

Open the full advisory

WID-SEC-W-2026-0180

Vulnerability from csaf_certbund - Published: 2026-01-20 23:00 - Updated: 2026-01-20 23:00

Summary

Dell Data Protection Advisor: Mehrere Schwachstellen

Severity

Hoch

Scope

378 vulnerabilities in this advisory, including CVE-2022-41940.

CVE-2022-41940

Known affected: 1 product

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2022-41940 (GCVE-0-2022-41940)

CNVD-2022-85553

FKIE_CVE-2022-41940

GHSA-R7QP-CFHV-P84W

Impact

Patches

Workarounds

For more information

GSD-2022-41940

RHSA-2023:3954

WID-SEC-W-2026-0180

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour