Vulnerability-Lookup

CVE-2021-37975 (GCVE-0-2021-37975)

Vulnerability from cvelistv5 – Published: 2021-10-08 00:00 – Updated: 2025-10-21 23:25

CISA Previdian

Summary

Use after free in V8 in Google Chrome prior to 94.0.4606.71 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

SSVC

Exploitation: active Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-29 16:51 UTC

CWE

Use after free
CWE-416 - Use After Free

Assigner

Chrome Google root

References

8 references

URL	Tags
https://chromereleases.googleblog.com/2021/09/sta…
https://crbug.com/1252918
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://www.debian.org/security/2022/dsa-5046	vendor-advisory
http://packetstormsecurity.com/files/172847/Chrom…
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

1 product

Vendor	Product	Version	CPE status
Google	Chrome	Affected: unspecified , < 94.0.4606.71 (custom)	guessed

CISA

Known Exploited Vulnerability - GCVE BCP-07 Compliant

KEV entry ID: 8a7a500c-1844-40d1-9c72-13cdb097f0a8

Vulnerability ID: CVE-2021-37975

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 Use-After-Free Vulnerability | Affected: Google / Chromium V8 | Description: Google Chromium V8 Engine contains a use-after-free 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-2021-37975

Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details

Cwes	CWE-416
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 Use-After-Free Vulnerability
Knownransomwarecampaignuse	Unknown

References

CVE-2021-37975

Created: 2026-02-02 13:26 UTC | Updated: 2026-02-06 07:53 UTC

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

KEV entry ID: 926fa9dd-7bbd-4903-b161-2d5f0593b3dc

Vulnerability ID: CVE-2021-37975

Status: Confirmed

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

Exploited: Yes

Timestamps

First Seen: 2021-11-03

Asserted: 2021-11-03

Scope

Notes: KEVIntel entry: Use after free in V8 in Google Chrome prior to 94.0.4606.71 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. | Affected: Google / Chrome | CVSS: 8.8 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: False

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details

Feed	KEVIntel (kevintel.com)
Title	Use after free in V8 in Google Chrome prior to 94.0.4606.71 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Vendor	Google
Product	Chrome
Added Date	2021-11-03T00:00:00.000Z
Cvss Score	8.8
Epss Score	None
Cvss Severity	HIGH
Epss Percentile	None
Used In Malware	unknown
Ahead Of Cisa Kev	None
Not Yet In Cisa Kev	False

References

Created: 2026-06-23 11:13 UTC | Updated: 2026-06-23 11:13 UTC

Show details on NVD website

JSON

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_30.html\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://crbug.com/1252918\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D63JZ3ROXCUHP4CFWDHCPZNTGET7T34R/\", \"name\": \"FEDORA-2021-116eff380f\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRFXUDH46PFVE75VQVWY6PYY5DK3S2XT/\", \"name\": \"FEDORA-2021-5ffabdc080\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RNARCF5HEZK7GJXZRN5TQ45AQDCRM2WO/\", \"name\": \"FEDORA-2021-5093f11905\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://www.debian.org/security/2022/dsa-5046\", \"name\": \"DSA-5046\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"http://packetstormsecurity.com/files/172847/Chrome-V8-Logic-Bug-Use-After-Free.html\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T01:30:09.282Z\"}}, {\"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-2021-37975\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-01-29T16:51:28.386861Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2021-11-03\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-37975\"}}}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2021-11-03T00:00:00.000Z\", \"value\": \"CVE-2021-37975 added to CISA KEV\"}], \"references\": [{\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-37975\", \"tags\": [\"government-resource\"]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-01-29T16:50:39.796Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"Google\", \"product\": \"Chrome\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"94.0.4606.71\", \"versionType\": \"custom\"}]}], \"references\": [{\"url\": \"https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_30.html\"}, {\"url\": \"https://crbug.com/1252918\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D63JZ3ROXCUHP4CFWDHCPZNTGET7T34R/\", \"name\": \"FEDORA-2021-116eff380f\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRFXUDH46PFVE75VQVWY6PYY5DK3S2XT/\", \"name\": \"FEDORA-2021-5ffabdc080\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RNARCF5HEZK7GJXZRN5TQ45AQDCRM2WO/\", \"name\": \"FEDORA-2021-5093f11905\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://www.debian.org/security/2022/dsa-5046\", \"name\": \"DSA-5046\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"http://packetstormsecurity.com/files/172847/Chrome-V8-Logic-Bug-Use-After-Free.html\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Use after free in V8 in Google Chrome prior to 94.0.4606.71 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"text\", \"description\": \"Use after free\"}]}], \"providerMetadata\": {\"orgId\": \"ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28\", \"shortName\": \"Chrome\", \"dateUpdated\": \"2023-06-12T00:00:00.000Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-37975\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:25:29.815Z\", \"dateReserved\": \"2021-08-03T00:00:00.000Z\", \"assignerOrgId\": \"ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28\", \"datePublished\": \"2021-10-08T00:00:00.000Z\", \"assignerShortName\": \"Chrome\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}

OPENSUSE-SU-2021:1433-1

Vulnerability from csaf_opensuse - Published: 2021-11-01 13:06 - Updated: 2021-11-01 13:06

Summary

Security update for opera

Severity

Important

Scope

7 vulnerabilities in this advisory, including CVE-2021-37975.

CVE-2021-37975

8.8 (High)


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

Recommended: 1 product

Open the full advisory

OPENSUSE-SU-2021:1434-1

Vulnerability from csaf_opensuse - Published: 2021-11-01 15:06 - Updated: 2021-11-01 15:06

Summary

Security update for opera

Severity

Important

Scope

7 vulnerabilities in this advisory, including CVE-2021-37975.

CVE-2021-37975

8.8 (High)


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

Recommended: 1 product

Open the full advisory

OPENSUSE-SU-2022:0110-1

Vulnerability from csaf_opensuse - Published: 2022-04-08 14:01 - Updated: 2022-04-08 14:01

Summary

Security update for opera

Severity

Important

Scope

241 vulnerabilities in this advisory, including CVE-2021-37975.

CVE-2021-37975

8.8 (High)


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

Recommended: 1 product

Open the full advisory

OPENSUSE-SU-2024:11555-1

Vulnerability from csaf_opensuse - Published: 2024-06-15 00:00 - Updated: 2024-06-15 00:00

Summary

chromedriver-94.0.4606.71-1.1 on GA media

Severity

Moderate

Scope

21 vulnerabilities in this advisory, including CVE-2021-37975.

CVE-2021-37975

8.8 (High)


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

Recommended: 8 products

Open the full advisory

OPENSUSE-SU-2024:11605-1

Vulnerability from csaf_opensuse - Published: 2024-06-15 00:00 - Updated: 2024-06-15 00:00

Summary

libQt5Pdf5-5.15.7-1.1 on GA media

Severity

Moderate

Scope

19 vulnerabilities in this advisory, including CVE-2021-37975.

CVE-2021-37975

8.8 (High)


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

Recommended: 40 products

Open the full advisory

OPENSUSE-SU-2024:12948-1

Vulnerability from csaf_opensuse - Published: 2024-06-15 00:00 - Updated: 2024-06-15 00:00

Summary

ungoogled-chromium-113.0.5672.92-1.1 on GA media

Severity

Moderate

Scope

2310 vulnerabilities in this advisory, including CVE-2021-37975.

CVE-2021-37975

8.8 (High)


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

Recommended: 8 products

Open the full advisory

ubuntu-cve-2021-37975

Vulnerability from osv_ubuntu

Published

2021-10-08 22:15

Modified

2025-09-08 16:47

Summary

Details

Use after free in V8 in Google Chrome prior to 94.0.4606.71 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

8.8 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2021-37975	REPORT
	https://www.cve.org/CVERecord?id=CVE-2021-37975	REPORT
	https://www.cisa.gov/known-exploited-vulnerabilit…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "chromium-browser",
            "binary_version": "94.0.4606.71-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "chromium-browser-l10n",
            "binary_version": "94.0.4606.71-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "chromium-chromedriver",
            "binary_version": "94.0.4606.71-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "chromium-codecs-ffmpeg",
            "binary_version": "94.0.4606.71-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "chromium-codecs-ffmpeg-extra",
            "binary_version": "94.0.4606.71-0ubuntu0.18.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "chromium-browser",
        "purl": "pkg:deb/ubuntu/chromium-browser@94.0.4606.71-0ubuntu0.18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "94.0.4606.71-0ubuntu0.18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "61.0.3163.100-0ubuntu1.1378",
        "62.0.3202.62-0ubuntu0.17.10.1380",
        "62.0.3202.89-0ubuntu1.1386",
        "62.0.3202.94-0ubuntu1.1388",
        "63.0.3239.84-0ubuntu1",
        "63.0.3239.108-0ubuntu1",
        "64.0.3282.119-0ubuntu1",
        "64.0.3282.140-0ubuntu1",
        "64.0.3282.167-0ubuntu1",
        "65.0.3325.146-0ubuntu1",
        "65.0.3325.181-0ubuntu1",
        "66.0.3359.139-0ubuntu0.18.04.3",
        "66.0.3359.181-0ubuntu0.18.04.1",
        "67.0.3396.99-0ubuntu0.18.04.1",
        "68.0.3440.75-0ubuntu0.18.04.1",
        "68.0.3440.106-0ubuntu0.18.04.1",
        "69.0.3497.81-0ubuntu0.18.04.1",
        "70.0.3538.67-0ubuntu0.18.04.1",
        "70.0.3538.77-0ubuntu0.18.04.1",
        "70.0.3538.110-0ubuntu0.18.04.1",
        "71.0.3578.80-0ubuntu0.18.04.1",
        "71.0.3578.98-0ubuntu0.18.04.1",
        "72.0.3626.119-0ubuntu0.18.04.1",
        "72.0.3626.121-0ubuntu0.18.04.1",
        "73.0.3683.75-0ubuntu0.18.04.1",
        "73.0.3683.86-0ubuntu0.18.04.1",
        "74.0.3729.169-0ubuntu0.18.04.1",
        "75.0.3770.90-0ubuntu0.18.04.1",
        "75.0.3770.142-0ubuntu0.18.04.1",
        "76.0.3809.87-0ubuntu0.18.04.1",
        "76.0.3809.100-0ubuntu0.18.04.1",
        "77.0.3865.90-0ubuntu0.18.04.1",
        "78.0.3904.70-0ubuntu0.18.04.2",
        "78.0.3904.97-0ubuntu0.18.04.1",
        "78.0.3904.108-0ubuntu0.18.04.1",
        "79.0.3945.79-0ubuntu0.18.04.1",
        "79.0.3945.130-0ubuntu0.18.04.1",
        "80.0.3987.87-0ubuntu0.18.04.1",
        "80.0.3987.149-0ubuntu0.18.04.1",
        "80.0.3987.163-0ubuntu0.18.04.1",
        "81.0.4044.122-0ubuntu0.18.04.1",
        "81.0.4044.138-0ubuntu0.18.04.1",
        "83.0.4103.61-0ubuntu0.18.04.1",
        "84.0.4147.105-0ubuntu0.18.04.1",
        "85.0.4183.83-0ubuntu0.18.04.2",
        "85.0.4183.121-0ubuntu0.18.04.1",
        "86.0.4240.75-0ubuntu0.18.04.1",
        "86.0.4240.198-0ubuntu0.18.04.1",
        "87.0.4280.66-0ubuntu0.18.04.1",
        "89.0.4389.82-0ubuntu0.18.04.1",
        "89.0.4389.90-0ubuntu0.18.04.2",
        "90.0.4430.72-0ubuntu0.18.04.1",
        "90.0.4430.93-0ubuntu0.18.04.1",
        "91.0.4472.77-0ubuntu0.18.04.1",
        "91.0.4472.101-0ubuntu0.18.04.1",
        "92.0.4515.159-0ubuntu0.18.04.1",
        "93.0.4577.63-0ubuntu0.18.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "Use after free in V8 in Google Chrome prior to 94.0.4606.71 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
  "id": "UBUNTU-CVE-2021-37975",
  "modified": "2025-09-08T16:47:16Z",
  "published": "2021-10-08T22:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-37975"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-37975"
    },
    {
      "type": "REPORT",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-37975"
  ]
}

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.

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.

Action not permitted

CVE-2021-37975 (GCVE-0-2021-37975)

CISA

Known Exploited Vulnerability - GCVE BCP-07 Compliant

Timestamps

Scope

Evidence

Vendor Report Successful Exploitation Confidence: 80% Source: cisa-kev

Details

References

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

Timestamps

Scope

Evidence

Public Report Successful Exploitation Confidence: 70% Source: kevintel

Details

References

OPENSUSE-SU-2021:1433-1

OPENSUSE-SU-2021:1434-1

OPENSUSE-SU-2022:0110-1

OPENSUSE-SU-2024:11555-1

OPENSUSE-SU-2024:11605-1

OPENSUSE-SU-2024:12948-1

ubuntu-cve-2021-37975

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature