{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2021-21220",
        "assignerOrgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28",
        "assignerShortName": "Chrome",
        "dateUpdated": "2025-10-21T23:25:48.124Z",
        "dateReserved": "2020-12-21T00:00:00.000Z",
        "datePublished": "2021-04-26T00:00:00.000Z"
    },
    "containers": {
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                "orgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28",
                "shortName": "Chrome",
                "dateUpdated": "2023-12-14T16:06:23.552Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Insufficient validation of untrusted input in V8 in Google Chrome prior to 89.0.4389.128 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page."
                }
            ],
            "affected": [
                {
                    "vendor": "Google",
                    "product": "Chrome",
                    "versions": [
                        {
                            "version": "unspecified",
                            "lessThan": "89.0.4389.128",
                            "status": "affected",
                            "versionType": "custom"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html"
                },
                {
                    "url": "https://crbug.com/1196683"
                },
                {
                    "name": "GLSA-202104-08",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://security.gentoo.org/glsa/202104-08"
                },
                {
                    "url": "http://packetstormsecurity.com/files/162437/Google-Chrome-XOR-Typer-Out-Of-Bounds-Access-Remote-Code-Execution.html"
                },
                {
                    "name": "FEDORA-2021-c3754414e7",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/"
                },
                {
                    "name": "FEDORA-2021-ff893e12c5",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/"
                },
                {
                    "name": "FEDORA-2021-35d2bb4627",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/"
                },
                {
                    "url": "http://packetstormsecurity.com/files/176210/Chrome-V8-JIT-XOR-Arbitrary-Code-Execution.html"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "text",
                            "lang": "en",
                            "description": "Insufficient validation of untrusted input"
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                    "shortName": "CVE",
                    "dateUpdated": "2024-08-03T18:01:14.481Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html",
                        "tags": [
                            "x_transferred"
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                    {
                        "url": "https://crbug.com/1196683",
                        "tags": [
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                    {
                        "name": "GLSA-202104-08",
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                            "vendor-advisory",
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                    },
                    {
                        "url": "http://packetstormsecurity.com/files/162437/Google-Chrome-XOR-Typer-Out-Of-Bounds-Access-Remote-Code-Execution.html",
                        "tags": [
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                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
                        ],
                        "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/"
                    },
                    {
                        "name": "FEDORA-2021-ff893e12c5",
                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
                        ],
                        "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/"
                    },
                    {
                        "name": "FEDORA-2021-35d2bb4627",
                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
                        ],
                        "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/"
                    },
                    {
                        "url": "http://packetstormsecurity.com/files/176210/Chrome-V8-JIT-XOR-Arbitrary-Code-Execution.html",
                        "tags": [
                            "x_transferred"
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                    }
                ]
            },
            {
                "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-2021-21220",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "active"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2024-02-05T20:46:25.331686Z"
                            }
                        }
                    },
                    {
                        "other": {
                            "type": "kev",
                            "content": {
                                "dateAdded": "2021-11-03",
                                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21220"
                            }
                        }
                    }
                ],
                "references": [
                    {
                        "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21220",
                        "tags": [
                            "government-resource"
                        ]
                    }
                ],
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "lang": "en",
                                "type": "CWE",
                                "cweId": "CWE-787",
                                "description": "CWE-787 Out-of-bounds Write"
                            }
                        ]
                    }
                ],
                "timeline": [
                    {
                        "time": "2021-11-03T00:00:00.000Z",
                        "lang": "en",
                        "value": "CVE-2021-21220 added to CISA KEV"
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-10-21T23:25:48.124Z"
                }
            }
        ]
    }
}