CVE-2021-30665 (GCVE-0-2021-30665)

Vulnerability from cvelistv5 – Published: 2021-09-08 14:25 – Updated: 2025-10-21 23:25
VLAI? CISA KEV
Summary
A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 7.4.1, iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
Severity ?
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
Assigner
References
Impacted products
Vendor Product Version
Apple macOS Affected: unspecified , < 11.3 (custom)
Create a notification for this product.
    Apple macOS Affected: unspecified , < 14.5 (custom)
Create a notification for this product.
    Apple macOS Affected: unspecified , < 7.4 (custom)
Create a notification for this product.
    Apple macOS Affected: unspecified , < 12.5 (custom)
Create a notification for this product.
    Apple macOS Affected: unspecified , < 14.6 (custom)
Create a notification for this product.
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 7de9769c-25c4-47e4-9998-184993ecea39

Vulnerability ID: CVE-2021-30665

Status: Confirmed

Status Updated: 2021-11-03 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2021-11-03
Asserted: 2021-11-03
Scope
Notes: KEV entry: Apple Multiple Products WebKit Memory Corruption Vulnerability | Affected: Apple / Multiple Products | Description: Apple iOS, iPadOS, macOS, watchOS, and tvOS WebKit contain a memory corruption vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing. | Required action: Apply updates per vendor instructions. | Due date: 2021-11-17 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2021-30665
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-787
Feed CISA Known Exploited Vulnerabilities Catalog
Product Multiple Products
Due Date 2021-11-17
Date Added 2021-11-03
Vendorproject Apple
Vulnerabilityname Apple Multiple Products WebKit Memory Corruption Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:28 UTC | Updated: 2026-02-06 07:17 UTC
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T22:40:31.995Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://support.apple.com/en-us/HT212532"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://support.apple.com/en-us/HT212341"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://support.apple.com/en-us/HT212335"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://support.apple.com/en-us/HT212336"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://support.apple.com/en-us/HT212339"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2021-30665",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-01-29T17:26:21.511776Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2021-11-03",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30665"
              },
              "type": "kev"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-787",
                "description": "CWE-787 Out-of-bounds Write",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-21T23:25:34.957Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30665"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2021-11-03T00:00:00+00:00",
            "value": "CVE-2021-30665 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "macOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "11.3",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "macOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "14.5",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "macOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "7.4",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "macOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "12.5",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "macOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "14.6",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 7.4.1, iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-09-08T14:25:00.000Z",
        "orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
        "shortName": "apple"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://support.apple.com/en-us/HT212532"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://support.apple.com/en-us/HT212341"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://support.apple.com/en-us/HT212335"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://support.apple.com/en-us/HT212336"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://support.apple.com/en-us/HT212339"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "product-security@apple.com",
          "ID": "CVE-2021-30665",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "macOS",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "11.3"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "macOS",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "14.5"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "macOS",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "7.4"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "macOS",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "12.5"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "macOS",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "14.6"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Apple"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 7.4.1, iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited."
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://support.apple.com/en-us/HT212532",
              "refsource": "MISC",
              "url": "https://support.apple.com/en-us/HT212532"
            },
            {
              "name": "https://support.apple.com/en-us/HT212341",
              "refsource": "MISC",
              "url": "https://support.apple.com/en-us/HT212341"
            },
            {
              "name": "https://support.apple.com/en-us/HT212335",
              "refsource": "MISC",
              "url": "https://support.apple.com/en-us/HT212335"
            },
            {
              "name": "https://support.apple.com/en-us/HT212336",
              "refsource": "MISC",
              "url": "https://support.apple.com/en-us/HT212336"
            },
            {
              "name": "https://support.apple.com/en-us/HT212339",
              "refsource": "MISC",
              "url": "https://support.apple.com/en-us/HT212339"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
    "assignerShortName": "apple",
    "cveId": "CVE-2021-30665",
    "datePublished": "2021-09-08T14:25:00.000Z",
    "dateReserved": "2021-04-13T00:00:00.000Z",
    "dateUpdated": "2025-10-21T23:25:34.957Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "cisa_known_exploited": {
      "cveID": "CVE-2021-30665",
      "cwes": "[\"CWE-787\"]",
      "dateAdded": "2021-11-03",
      "dueDate": "2021-11-17",
      "knownRansomwareCampaignUse": "Unknown",
      "notes": "https://nvd.nist.gov/vuln/detail/CVE-2021-30665",
      "product": "Multiple Products",
      "requiredAction": "Apply updates per vendor instructions.",
      "shortDescription": "Apple iOS, iPadOS, macOS, watchOS, and tvOS WebKit contain a memory corruption vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.",
      "vendorProject": "Apple",
      "vulnerabilityName": "Apple Multiple Products WebKit Memory Corruption Vulnerability"
    },
    "fkie_nvd": {
      "cisaActionDue": "2021-11-17",
      "cisaExploitAdd": "2021-11-03",
      "cisaRequiredAction": "Apply updates per vendor instructions.",
      "cisaVulnerabilityName": "Apple Multiple Products WebKit Memory Corruption Vulnerability",
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"14.5.1\", \"matchCriteriaId\": \"5B359E58-3DFD-430B-8630-EDFE22A986A8\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"12.5.3\", \"matchCriteriaId\": \"443BF1FD-EC67-437D-A9CA-EEB3EF25B701\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"13.0\", \"versionEndExcluding\": \"14.5.1\", \"matchCriteriaId\": \"C34E22EA-B0D1-4830-A946-EAA740419204\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"11.3.1\", \"matchCriteriaId\": \"9C5F498C-9B91-4888-9BA1-905836A40C64\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"14.6\", \"matchCriteriaId\": \"9076D8C8-70CD-4DE5-8BAE-8CA6A5BEDDB3\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"7.4.1\", \"matchCriteriaId\": \"F2A1D20A-1C0B-4642-883F-D8295A897DF9\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 7.4.1, iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..\"}, {\"lang\": \"es\", \"value\": \"Se abord\\u00f3 un problema de corrupci\\u00f3n de la memoria con una administraci\\u00f3n de estado mejorada. Este problema es corregido en watchOS versi\\u00f3n 7.4.1, iOS versi\\u00f3n 14.5.1 y iPadOS versi\\u00f3n 14.5.1, tvOS versi\\u00f3n 14.6, iOS versi\\u00f3n 12.5.3, macOS Big Sur versi\\u00f3n 11.3.1. El procesamiento de contenido web maliciosamente dise\\u00f1ado puede conllevar a una ejecuci\\u00f3n de c\\u00f3digo arbitrario. Apple est\\u00e1 al tanto de un informe de que este problema puede haber sido explotado activamente\"}]",
      "id": "CVE-2021-30665",
      "lastModified": "2024-11-21T06:04:23.627",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\", \"baseScore\": 8.8, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"REQUIRED\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 5.9}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:M/Au:N/C:P/I:P/A:P\", \"baseScore\": 6.8, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"MEDIUM\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 8.6, \"impactScore\": 6.4, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": true}]}",
      "published": "2021-09-08T15:15:13.507",
      "references": "[{\"url\": \"https://support.apple.com/en-us/HT212335\", \"source\": \"product-security@apple.com\", \"tags\": [\"Release Notes\", \"Vendor Advisory\"]}, {\"url\": \"https://support.apple.com/en-us/HT212336\", \"source\": \"product-security@apple.com\", \"tags\": [\"Release Notes\", \"Vendor Advisory\"]}, {\"url\": \"https://support.apple.com/en-us/HT212339\", \"source\": \"product-security@apple.com\", \"tags\": [\"Release Notes\", \"Vendor Advisory\"]}, {\"url\": \"https://support.apple.com/en-us/HT212341\", \"source\": \"product-security@apple.com\", \"tags\": [\"Release Notes\", \"Vendor Advisory\"]}, {\"url\": \"https://support.apple.com/en-us/HT212532\", \"source\": \"product-security@apple.com\", \"tags\": [\"Release Notes\", \"Vendor Advisory\"]}, {\"url\": \"https://support.apple.com/en-us/HT212335\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Release Notes\", \"Vendor Advisory\"]}, {\"url\": \"https://support.apple.com/en-us/HT212336\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Release Notes\", \"Vendor Advisory\"]}, {\"url\": \"https://support.apple.com/en-us/HT212339\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Release Notes\", \"Vendor Advisory\"]}, {\"url\": \"https://support.apple.com/en-us/HT212341\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Release Notes\", \"Vendor Advisory\"]}, {\"url\": \"https://support.apple.com/en-us/HT212532\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Release Notes\", \"Vendor Advisory\"]}]",
      "sourceIdentifier": "product-security@apple.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-787\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-30665\",\"sourceIdentifier\":\"product-security@apple.com\",\"published\":\"2021-09-08T15:15:13.507\",\"lastModified\":\"2025-10-23T14:55:47.683\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 7.4.1, iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..\"},{\"lang\":\"es\",\"value\":\"Se abord\u00f3 un problema de corrupci\u00f3n de la memoria con una administraci\u00f3n de estado mejorada. Este problema es corregido en watchOS versi\u00f3n 7.4.1, iOS versi\u00f3n 14.5.1 y iPadOS versi\u00f3n 14.5.1, tvOS versi\u00f3n 14.6, iOS versi\u00f3n 12.5.3, macOS Big Sur versi\u00f3n 11.3.1. El procesamiento de contenido web maliciosamente dise\u00f1ado puede conllevar a una ejecuci\u00f3n de c\u00f3digo arbitrario. Apple est\u00e1 al tanto de un informe de que este problema puede haber sido explotado activamente\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:P/I:P/A:P\",\"baseScore\":6.8,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":true}]},\"cisaExploitAdd\":\"2021-11-03\",\"cisaActionDue\":\"2021-11-17\",\"cisaRequiredAction\":\"Apply updates per vendor instructions.\",\"cisaVulnerabilityName\":\"Apple Multiple Products WebKit Memory Corruption Vulnerability\",\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"14.5.1\",\"matchCriteriaId\":\"5B359E58-3DFD-430B-8630-EDFE22A986A8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"12.5.3\",\"matchCriteriaId\":\"443BF1FD-EC67-437D-A9CA-EEB3EF25B701\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"13.0\",\"versionEndExcluding\":\"14.5.1\",\"matchCriteriaId\":\"C34E22EA-B0D1-4830-A946-EAA740419204\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"11.3.1\",\"matchCriteriaId\":\"9C5F498C-9B91-4888-9BA1-905836A40C64\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"14.6\",\"matchCriteriaId\":\"9076D8C8-70CD-4DE5-8BAE-8CA6A5BEDDB3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"7.4.1\",\"matchCriteriaId\":\"F2A1D20A-1C0B-4642-883F-D8295A897DF9\"}]}]}],\"references\":[{\"url\":\"https://support.apple.com/en-us/HT212335\",\"source\":\"product-security@apple.com\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://support.apple.com/en-us/HT212336\",\"source\":\"product-security@apple.com\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://support.apple.com/en-us/HT212339\",\"source\":\"product-security@apple.com\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://support.apple.com/en-us/HT212341\",\"source\":\"product-security@apple.com\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://support.apple.com/en-us/HT212532\",\"source\":\"product-security@apple.com\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://support.apple.com/en-us/HT212335\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://support.apple.com/en-us/HT212336\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://support.apple.com/en-us/HT212339\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://support.apple.com/en-us/HT212341\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://support.apple.com/en-us/HT212532\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30665\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"Third Party Advisory\",\"US Government Resource\"]}]}}",
    "vulnrichment": {
      "containers": "{\"cna\": {\"affected\": [{\"product\": \"macOS\", \"vendor\": \"Apple\", \"versions\": [{\"lessThan\": \"11.3\", \"status\": \"affected\", \"version\": \"unspecified\", \"versionType\": \"custom\"}]}, {\"product\": \"macOS\", \"vendor\": \"Apple\", \"versions\": [{\"lessThan\": \"14.5\", \"status\": \"affected\", \"version\": \"unspecified\", \"versionType\": \"custom\"}]}, {\"product\": \"macOS\", \"vendor\": \"Apple\", \"versions\": [{\"lessThan\": \"7.4\", \"status\": \"affected\", \"version\": \"unspecified\", \"versionType\": \"custom\"}]}, {\"product\": \"macOS\", \"vendor\": \"Apple\", \"versions\": [{\"lessThan\": \"12.5\", \"status\": \"affected\", \"version\": \"unspecified\", \"versionType\": \"custom\"}]}, {\"product\": \"macOS\", \"vendor\": \"Apple\", \"versions\": [{\"lessThan\": \"14.6\", \"status\": \"affected\", \"version\": \"unspecified\", \"versionType\": \"custom\"}]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 7.4.1, iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..\"}], \"problemTypes\": [{\"descriptions\": [{\"description\": \"Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.\", \"lang\": \"en\", \"type\": \"text\"}]}], \"providerMetadata\": {\"dateUpdated\": \"2021-09-08T14:25:00.000Z\", \"orgId\": \"286789f9-fbc2-4510-9f9a-43facdede74c\", \"shortName\": \"apple\"}, \"references\": [{\"tags\": [\"x_refsource_MISC\"], \"url\": \"https://support.apple.com/en-us/HT212532\"}, {\"tags\": [\"x_refsource_MISC\"], \"url\": \"https://support.apple.com/en-us/HT212341\"}, {\"tags\": [\"x_refsource_MISC\"], \"url\": \"https://support.apple.com/en-us/HT212335\"}, {\"tags\": [\"x_refsource_MISC\"], \"url\": \"https://support.apple.com/en-us/HT212336\"}, {\"tags\": [\"x_refsource_MISC\"], \"url\": \"https://support.apple.com/en-us/HT212339\"}], \"x_legacyV4Record\": {\"CVE_data_meta\": {\"ASSIGNER\": \"product-security@apple.com\", \"ID\": \"CVE-2021-30665\", \"STATE\": \"PUBLIC\"}, \"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"product_name\": \"macOS\", \"version\": {\"version_data\": [{\"version_affected\": \"\u003c\", \"version_value\": \"11.3\"}]}}, {\"product_name\": \"macOS\", \"version\": {\"version_data\": [{\"version_affected\": \"\u003c\", \"version_value\": \"14.5\"}]}}, {\"product_name\": \"macOS\", \"version\": {\"version_data\": [{\"version_affected\": \"\u003c\", \"version_value\": \"7.4\"}]}}, {\"product_name\": \"macOS\", \"version\": {\"version_data\": [{\"version_affected\": \"\u003c\", \"version_value\": \"12.5\"}]}}, {\"product_name\": \"macOS\", \"version\": {\"version_data\": [{\"version_affected\": \"\u003c\", \"version_value\": \"14.6\"}]}}]}, \"vendor_name\": \"Apple\"}]}}, \"data_format\": \"MITRE\", \"data_type\": \"CVE\", \"data_version\": \"4.0\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 7.4.1, iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.\"}]}]}, \"references\": {\"reference_data\": [{\"name\": \"https://support.apple.com/en-us/HT212532\", \"refsource\": \"MISC\", \"url\": \"https://support.apple.com/en-us/HT212532\"}, {\"name\": \"https://support.apple.com/en-us/HT212341\", \"refsource\": \"MISC\", \"url\": \"https://support.apple.com/en-us/HT212341\"}, {\"name\": \"https://support.apple.com/en-us/HT212335\", \"refsource\": \"MISC\", \"url\": \"https://support.apple.com/en-us/HT212335\"}, {\"name\": \"https://support.apple.com/en-us/HT212336\", \"refsource\": \"MISC\", \"url\": \"https://support.apple.com/en-us/HT212336\"}, {\"name\": \"https://support.apple.com/en-us/HT212339\", \"refsource\": \"MISC\", \"url\": \"https://support.apple.com/en-us/HT212339\"}]}}}, \"adp\": [{\"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T22:40:31.995Z\"}, \"title\": \"CVE Program Container\", \"references\": [{\"tags\": [\"x_refsource_MISC\", \"x_transferred\"], \"url\": \"https://support.apple.com/en-us/HT212532\"}, {\"tags\": [\"x_refsource_MISC\", \"x_transferred\"], \"url\": \"https://support.apple.com/en-us/HT212341\"}, {\"tags\": [\"x_refsource_MISC\", \"x_transferred\"], \"url\": \"https://support.apple.com/en-us/HT212335\"}, {\"tags\": [\"x_refsource_MISC\", \"x_transferred\"], \"url\": \"https://support.apple.com/en-us/HT212336\"}, {\"tags\": [\"x_refsource_MISC\", \"x_transferred\"], \"url\": \"https://support.apple.com/en-us/HT212339\"}]}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/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\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-30665\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-01-29T17:26:21.511776Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2021-11-03\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30665\"}}}], \"timeline\": [{\"time\": \"2021-11-03T00:00:00+00:00\", \"lang\": \"en\", \"value\": \"CVE-2021-30665 added to CISA KEV\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-787\", \"description\": \"CWE-787 Out-of-bounds Write\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-01-29T17:24:36.533Z\"}}]}",
      "cveMetadata": "{\"assignerOrgId\": \"286789f9-fbc2-4510-9f9a-43facdede74c\", \"assignerShortName\": \"apple\", \"cveId\": \"CVE-2021-30665\", \"datePublished\": \"2021-09-08T14:25:00.000Z\", \"dateReserved\": \"2021-04-13T00:00:00.000Z\", \"dateUpdated\": \"2025-07-30T01:38:01.142Z\", \"state\": \"PUBLISHED\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.