CVE-2021-30632 (GCVE-0-2021-30632)

Vulnerability from cvelistv5 – Published: 2021-10-08 00:00 – Updated: 2025-10-21 23:25
VLAI? CISA KEV
Summary
Out of bounds write in V8 in Google Chrome prior to 93.0.4577.82 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Severity ?
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • Out of bounds write
Assigner
References
Impacted products
Vendor Product Version
Google Chrome Affected: unspecified , < 93.0.4577.82 (custom)
Create a notification for this product.
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: a639844a-976e-4b09-826d-de7e8f829f70

Vulnerability ID: CVE-2021-30632

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: Google Chromium V8 Out-of-Bounds Write Vulnerability | Affected: Google / Chromium V8 | Description: Google Chromium V8 Engine contains an out-of-bounds write vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera. | 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-2021-30632
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-122
Feed CISA Known Exploited Vulnerabilities Catalog
Product Chromium V8
Due Date 2021-11-17
Date Added 2021-11-03
Vendorproject Google
Vulnerabilityname Google Chromium V8 Out-of-Bounds Write 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 

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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://crbug.com/1247763\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/\", \"name\": \"FEDORA-2021-ab09a05562\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/\", \"name\": \"FEDORA-2021-591b3a2af0\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"http://packetstormsecurity.com/files/172845/Chrome-JIT-Compiler-Type-Confusion.html\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T22:40:31.947Z\"}}, {\"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-2021-30632\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-01-29T16:52:08.650470Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2021-11-03\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30632\"}}}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2021-11-03T00:00:00.000Z\", \"value\": \"CVE-2021-30632 added to CISA KEV\"}], \"references\": [{\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30632\", \"tags\": [\"government-resource\"]}], \"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\": \"2025-01-29T16:51:08.607Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"Google\", \"product\": \"Chrome\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"93.0.4577.82\", \"versionType\": \"custom\"}]}], \"references\": [{\"url\": \"https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html\"}, {\"url\": \"https://crbug.com/1247763\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/\", \"name\": \"FEDORA-2021-ab09a05562\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/\", \"name\": \"FEDORA-2021-591b3a2af0\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"http://packetstormsecurity.com/files/172845/Chrome-JIT-Compiler-Type-Confusion.html\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Out of bounds write in V8 in Google Chrome prior to 93.0.4577.82 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"text\", \"description\": \"Out of bounds write\"}]}], \"providerMetadata\": {\"orgId\": \"ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28\", \"shortName\": \"Chrome\", \"dateUpdated\": \"2023-06-12T00:00:00.000Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-30632\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:25:29.990Z\", \"dateReserved\": \"2021-04-13T00:00:00.000Z\", \"assignerOrgId\": \"ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28\", \"datePublished\": \"2021-10-08T00:00:00.000Z\", \"assignerShortName\": \"Chrome\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



Detection rules are retrieved from Rulezet.