Vulnerability-Lookup

CVE-2022-21676 (GCVE-0-2022-21676)

Vulnerability from cvelistv5 – Published: 2022-01-12 18:25 – Updated: 2025-04-23 19:13

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 starting from version `4.0.0`, including those who uses depending packages like `socket.io`. Versions prior to `4.0.0` are not impacted. A fix has been released for each major branch, namely `4.1.2` for the `4.x.x` branch, `5.2.1` for the `5.x.x` branch, and `6.1.1` for the `6.x.x` branch. There is no known workaround except upgrading to a safe version.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 15:58 UTC

CWE

CWE-754 - Improper Check for Unusual or Exceptional Conditions

Assigner

GitHub_M CNA under the mitre root

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

References

8 references

URL	Tags
https://github.com/socketio/engine.io/security/ad…	x_refsource_CONFIRM
https://github.com/socketio/engine.io/commit/66f8…	x_refsource_MISC
https://github.com/socketio/engine.io/commit/a708…	x_refsource_MISC
https://github.com/socketio/engine.io/commit/c0e1…	x_refsource_MISC
https://github.com/socketio/engine.io/releases/ta…	x_refsource_MISC
https://github.com/socketio/engine.io/releases/ta…	x_refsource_MISC
https://github.com/socketio/engine.io/releases/ta…	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2022020…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version	CPE status
socketio	engine.io	Affected: >= 4.0.0, < 4.1.2 Affected: >= 5.0.0, < 5.2.1 Affected: >= 6.0.0, < 6.1.1	guessed

Show details on NVD website

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}

FKIE_CVE-2022-21676

Vulnerability from fkie_nvd - Published: 2022-01-12 19:15 - Updated: 2026-06-17 04:26

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/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/66f889fc1d966bf5bfa0de1939069153643874ab	Patch, Third Party Advisory
security-advisories@github.com	https://github.com/socketio/engine.io/commit/a70800d7e96da32f6e6622804ef659ebc58659db	Patch, Third Party Advisory
security-advisories@github.com	https://github.com/socketio/engine.io/commit/c0e194d44933bd83bf9a4b126fca68ba7bf5098c	Patch, Third Party Advisory
security-advisories@github.com	https://github.com/socketio/engine.io/releases/tag/4.1.2	Release Notes, Third Party Advisory
security-advisories@github.com	https://github.com/socketio/engine.io/releases/tag/5.2.1	Release Notes, Third Party Advisory
security-advisories@github.com	https://github.com/socketio/engine.io/releases/tag/6.1.1	Release Notes, Third Party Advisory
security-advisories@github.com	https://github.com/socketio/engine.io/security/advisories/GHSA-273r-mgr4-v34f	Third Party Advisory
security-advisories@github.com	https://security.netapp.com/advisory/ntap-20220209-0002/	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/socketio/engine.io/commit/66f889fc1d966bf5bfa0de1939069153643874ab	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/socketio/engine.io/commit/a70800d7e96da32f6e6622804ef659ebc58659db	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/socketio/engine.io/commit/c0e194d44933bd83bf9a4b126fca68ba7bf5098c	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/socketio/engine.io/releases/tag/4.1.2	Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/socketio/engine.io/releases/tag/5.2.1	Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/socketio/engine.io/releases/tag/6.1.1	Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/socketio/engine.io/security/advisories/GHSA-273r-mgr4-v34f	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://security.netapp.com/advisory/ntap-20220209-0002/	Third Party Advisory

Impacted products

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

JSON

To clipboard

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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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            {
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  "published": "2022-01-12T19:15:09.217",
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    },
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      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
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      "url": "https://github.com/socketio/engine.io/releases/tag/4.1.2"
    },
    {
      "source": "security-advisories@github.com",
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      "tags": [
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  "sourceIdentifier": "security-advisories@github.com",
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-273R-MGR4-V34F

Vulnerability from github – Published: 2022-01-13 16:14 – Updated: 2022-01-21 13:25

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.

RangeError: Invalid WebSocket frame: RSV2 and RSV3 must be clear at Receiver.getInfo (/.../node_modules/ws/lib/receiver.js:176:14) at Receiver.startLoop (/.../node_modules/ws/lib/receiver.js:136:22) at Receiver._write (/.../node_modules/ws/lib/receiver.js:83:10) at writeOrBuffer (internal/streams/writable.js:358:12)

This impacts all the users of the engine.io package starting from version 4.0.0, including those who uses depending packages like socket.io.

Patches

A fix has been released for each major branch:

Version range	Fixed version
`engine.io@4.x.x`	`4.1.2`
`engine.io@5.x.x`	`5.2.1`
`engine.io@6.x.x`	`6.1.1`

Previous versions (< 4.0.0) are not impacted.

For socket.io users:

Version range	`engine.io` version	Needs minor update?
`socket.io@4.4.x`	`~6.1.0`	-
`socket.io@4.3.x`	`~6.0.0`	Please upgrade to `socket.io@4.4.x`
`socket.io@4.2.x`	`~5.2.0`	-
`socket.io@4.1.x`	`~5.1.1`	Please upgrade to `socket.io@4.4.x`
`socket.io@4.0.x`	`~5.0.0`	Please upgrade to `socket.io@4.4.x`
`socket.io@3.1.x`	`~4.1.0`	-
`socket.io@3.0.x`	`~4.0.0`	Please upgrade to `socket.io@3.1.x` or `socket.io@4.4.x` (see here)

In most cases, running npm audit fix should be sufficient. You can also use npm update engine.io --depth=9999.

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 Marcus Wejderot from Mevisio for the responsible disclosure.

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/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": "4.0.0"
            },
            {
              "fixed": "4.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "engine.io"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0"
            },
            {
              "fixed": "5.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "engine.io"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.0.0"
            },
            {
              "fixed": "6.1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-21676"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-754",
      "CWE-755"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-01-12T19:26:23Z",
    "nvd_published_at": "2022-01-12T19:15:00Z",
    "severity": "HIGH"
  },
  "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\u003e RangeError: Invalid WebSocket frame: RSV2 and RSV3 must be clear\n\u003e   at Receiver.getInfo (/.../node_modules/ws/lib/receiver.js:176:14)\n\u003e   at Receiver.startLoop (/.../node_modules/ws/lib/receiver.js:136:22)\n\u003e   at Receiver._write (/.../node_modules/ws/lib/receiver.js:83:10)\n\u003e   at writeOrBuffer (internal/streams/writable.js:358:12)\n\nThis impacts all the users of the [`engine.io`](https://www.npmjs.com/package/engine.io) package starting from version `4.0.0`, 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 for each major branch:\n\n| Version range | Fixed version |\n| --- | --- |\n| `engine.io@4.x.x` | `4.1.2` |\n| `engine.io@5.x.x` | `5.2.1` |\n| `engine.io@6.x.x` | `6.1.1` |\n\nPrevious versions (`\u003c 4.0.0`) are not impacted.\n\nFor `socket.io` users:\n\n| Version range | `engine.io` version | Needs minor update? |\n| --- | --- | --- |\n| `socket.io@4.4.x` | `~6.1.0` | -\n| `socket.io@4.3.x` | `~6.0.0` | Please upgrade to `socket.io@4.4.x`\n| `socket.io@4.2.x` | `~5.2.0` | -\n| `socket.io@4.1.x` | `~5.1.1` | Please upgrade to `socket.io@4.4.x`\n| `socket.io@4.0.x` | `~5.0.0` | Please upgrade to `socket.io@4.4.x`\n| `socket.io@3.1.x` | `~4.1.0` | -\n| `socket.io@3.0.x` | `~4.0.0` | Please upgrade to `socket.io@3.1.x` or `socket.io@4.4.x` (see [here](https://socket.io/docs/v4/migrating-from-3-x-to-4-0/))\n\nIn most cases, running `npm audit fix` should be sufficient. You can also use  `npm update engine.io --depth=9999`.\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 Marcus Wejderot from Mevisio for the responsible disclosure.\n",
  "id": "GHSA-273r-mgr4-v34f",
  "modified": "2022-01-21T13:25:59Z",
  "published": "2022-01-13T16:14:17Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/socketio/engine.io/security/advisories/GHSA-273r-mgr4-v34f"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-21676"
    },
    {
      "type": "WEB",
      "url": "https://github.com/socketio/engine.io/commit/66f889fc1d966bf5bfa0de1939069153643874ab"
    },
    {
      "type": "WEB",
      "url": "https://github.com/socketio/engine.io/commit/a70800d7e96da32f6e6622804ef659ebc58659db"
    },
    {
      "type": "WEB",
      "url": "https://github.com/socketio/engine.io/commit/c0e194d44933bd83bf9a4b126fca68ba7bf5098c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/socketio/engine.io"
    },
    {
      "type": "WEB",
      "url": "https://github.com/socketio/engine.io/releases/tag/4.1.2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/socketio/engine.io/releases/tag/5.2.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/socketio/engine.io/releases/tag/6.1.1"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220209-0002"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Uncaught Exception in engine.io"
}

GSD-2022-21676

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

Details

Aliases

CVE-2022-21676

Aliases

CVE-2022-21676

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2022-21676",
    "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 starting from version `4.0.0`, including those who uses depending packages like `socket.io`. Versions prior to `4.0.0` are not impacted. A fix has been released for each major branch, namely `4.1.2` for the `4.x.x` branch, `5.2.1` for the `5.x.x` branch, and `6.1.1` for the `6.x.x` branch. There is no known workaround except upgrading to a safe version.",
    "id": "GSD-2022-21676"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-21676"
      ],
      "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 starting from version `4.0.0`, including those who uses depending packages like `socket.io`. Versions prior to `4.0.0` are not impacted. A fix has been released for each major branch, namely `4.1.2` for the `4.x.x` branch, `5.2.1` for the `5.x.x` branch, and `6.1.1` for the `6.x.x` branch. There is no known workaround except upgrading to a safe version.",
      "id": "GSD-2022-21676",
      "modified": "2023-12-13T01:19:14.265764Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-21676",
        "STATE": "PUBLIC",
        "TITLE": "Uncaught Exception in engine.io"
      },
      "affects": {
        "vendor": {
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                    "version": {
                      "version_data": [
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                        },
                        {
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                        }
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            "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 starting from version `4.0.0`, including those who uses depending packages like `socket.io`. Versions prior to `4.0.0` are not impacted. A fix has been released for each major branch, namely `4.1.2` for the `4.x.x` branch, `5.2.1` for the `5.x.x` branch, and `6.1.1` for the `6.x.x` branch. There is no known workaround except upgrading to a safe version."
          }
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          "confidentialityImpact": "NONE",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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            "url": "https://security.netapp.com/advisory/ntap-20220209-0002/"
          }
        ]
      },
      "source": {
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        "discovery": "UNKNOWN"
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    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003e=4.0.0 \u003c4.1.2||\u003e=5.0.0 \u003c5.2.1||\u003e=6.0.0 \u003c6.1.1",
          "affected_versions": "All versions starting from 4.0.0 before 4.1.2, all versions starting from 5.0.0 before 5.2.1, all versions starting from 6.0.0 before 6.1.1",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-755",
            "CWE-937"
          ],
          "date": "2023-06-27",
          "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.",
          "fixed_versions": [
            "4.1.2",
            "5.2.1",
            "6.1.1"
          ],
          "identifier": "CVE-2022-21676",
          "identifiers": [
            "CVE-2022-21676",
            "GHSA-273r-mgr4-v34f"
          ],
          "not_impacted": "All versions before 4.0.0, all versions starting from 4.1.2 before 5.0.0, all versions starting from 5.2.1 before 6.0.0, all versions starting from 6.1.1",
          "package_slug": "npm/engine.io",
          "pubdate": "2022-01-12",
          "solution": "Upgrade to versions 4.1.2, 5.2.1, 6.1.1 or above.",
          "title": "Improper Check for Unusual or Exceptional Conditions",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2022-21676",
            "https://github.com/socketio/engine.io/security/advisories/GHSA-273r-mgr4-v34f",
            "https://github.com/socketio/engine.io/commit/c0e194d44933bd83bf9a4b126fca68ba7bf5098c",
            "https://github.com/socketio/engine.io/commit/66f889fc1d966bf5bfa0de1939069153643874ab",
            "https://github.com/socketio/engine.io/commit/a70800d7e96da32f6e6622804ef659ebc58659db",
            "https://github.com/socketio/engine.io/releases/tag/6.1.1",
            "https://github.com/socketio/engine.io/releases/tag/5.2.1",
            "https://github.com/socketio/engine.io/releases/tag/4.1.2"
          ],
          "uuid": "6e26aafb-3760-4780-9582-5ea3e8f245ce"
        }
      ]
    },
    "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": "6.1.1",
                "versionStartIncluding": "6.0.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:socket:engine.io:*:*:*:*:*:node.js:*:*",
                "cpe_name": [],
                "versionEndExcluding": "5.2.1",
                "versionStartIncluding": "5.0.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:socket:engine.io:*:*:*:*:*:node.js:*:*",
                "cpe_name": [],
                "versionEndExcluding": "4.1.2",
                "versionStartIncluding": "4.0.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2022-21676"
        },
        "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 starting from version `4.0.0`, including those who uses depending packages like `socket.io`. Versions prior to `4.0.0` are not impacted. A fix has been released for each major branch, namely `4.1.2` for the `4.x.x` branch, `5.2.1` for the `5.x.x` branch, and `6.1.1` for the `6.x.x` branch. There is no known workaround except upgrading to a safe version."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-755"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/socketio/engine.io/security/advisories/GHSA-273r-mgr4-v34f",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://github.com/socketio/engine.io/security/advisories/GHSA-273r-mgr4-v34f"
            },
            {
              "name": "https://github.com/socketio/engine.io/commit/c0e194d44933bd83bf9a4b126fca68ba7bf5098c",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/socketio/engine.io/commit/c0e194d44933bd83bf9a4b126fca68ba7bf5098c"
            },
            {
              "name": "https://github.com/socketio/engine.io/commit/66f889fc1d966bf5bfa0de1939069153643874ab",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/socketio/engine.io/commit/66f889fc1d966bf5bfa0de1939069153643874ab"
            },
            {
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              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/socketio/engine.io/commit/a70800d7e96da32f6e6622804ef659ebc58659db"
            },
            {
              "name": "https://github.com/socketio/engine.io/releases/tag/6.1.1",
              "refsource": "MISC",
              "tags": [
                "Release Notes",
                "Third Party Advisory"
              ],
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            },
            {
              "name": "https://github.com/socketio/engine.io/releases/tag/5.2.1",
              "refsource": "MISC",
              "tags": [
                "Release Notes",
                "Third Party Advisory"
              ],
              "url": "https://github.com/socketio/engine.io/releases/tag/5.2.1"
            },
            {
              "name": "https://github.com/socketio/engine.io/releases/tag/4.1.2",
              "refsource": "MISC",
              "tags": [
                "Release Notes",
                "Third Party Advisory"
              ],
              "url": "https://github.com/socketio/engine.io/releases/tag/4.1.2"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20220209-0002/",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://security.netapp.com/advisory/ntap-20220209-0002/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-06-27T19:03Z",
      "publishedDate": "2022-01-12T19:15Z"
    }
  }
}

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

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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-2022-21676 (GCVE-0-2022-21676)

FKIE_CVE-2022-21676

GHSA-273R-MGR4-V34F

Impact

Patches

Workarounds

For more information

GSD-2022-21676

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour