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Vulnerability Details :

CVE-2021-21220

Summary
Assigner-Chrome
Assigner Org ID-ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28
Published At-26 Apr, 2021 | 00:00
Updated At-21 Oct, 2025 | 23:25
Rejected At-
Credits

Google Chromium V8 Improper Input Validation Vulnerability

Google Chromium V8 Engine contains an improper input validation 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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Known Exploited Vulnerabilities (KEV)
cisa.gov
Vendor:
Google LLCGoogle
Product:Chromium V8
Added At:03 Nov, 2021
Due At:17 Nov, 2021

Google Chromium V8 Improper Input Validation Vulnerability

Google Chromium V8 Engine contains an improper input validation 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.

Used in Ransomware

:

Unknown

CWE

:
CWE-20CWE-122

Required Action:

Apply updates per vendor instructions.

Additional Notes:

https://nvd.nist.gov/vuln/detail/CVE-2021-21220
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:Chrome
Assigner Org ID:ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28
Published At:26 Apr, 2021 | 00:00
Updated At:21 Oct, 2025 | 23:25
Rejected At:
▼CVE Numbering Authority (CNA)

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 Products
Vendor
Google LLCGoogle
Product
Chrome
Versions
Affected
  • From unspecified before 89.0.4389.128 (custom)
Problem Types
TypeCWE IDDescription
textN/AInsufficient validation of untrusted input
Type: text
CWE ID: N/A
Description: Insufficient validation of untrusted input
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html
N/A
https://crbug.com/1196683
N/A
https://security.gentoo.org/glsa/202104-08
vendor-advisory
http://packetstormsecurity.com/files/162437/Google-Chrome-XOR-Typer-Out-Of-Bounds-Access-Remote-Code-Execution.html
N/A
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/
vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/
vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/
vendor-advisory
http://packetstormsecurity.com/files/176210/Chrome-V8-JIT-XOR-Arbitrary-Code-Execution.html
N/A
Hyperlink: https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html
Resource: N/A
Hyperlink: https://crbug.com/1196683
Resource: N/A
Hyperlink: https://security.gentoo.org/glsa/202104-08
Resource:
vendor-advisory
Hyperlink: http://packetstormsecurity.com/files/162437/Google-Chrome-XOR-Typer-Out-Of-Bounds-Access-Remote-Code-Execution.html
Resource: N/A
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/
Resource:
vendor-advisory
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/
Resource:
vendor-advisory
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/
Resource:
vendor-advisory
Hyperlink: http://packetstormsecurity.com/files/176210/Chrome-V8-JIT-XOR-Arbitrary-Code-Execution.html
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html
x_transferred
https://crbug.com/1196683
x_transferred
https://security.gentoo.org/glsa/202104-08
vendor-advisory
x_transferred
http://packetstormsecurity.com/files/162437/Google-Chrome-XOR-Typer-Out-Of-Bounds-Access-Remote-Code-Execution.html
x_transferred
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/
vendor-advisory
x_transferred
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/
vendor-advisory
x_transferred
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/
vendor-advisory
x_transferred
http://packetstormsecurity.com/files/176210/Chrome-V8-JIT-XOR-Arbitrary-Code-Execution.html
x_transferred
Hyperlink: https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html
Resource:
x_transferred
Hyperlink: https://crbug.com/1196683
Resource:
x_transferred
Hyperlink: https://security.gentoo.org/glsa/202104-08
Resource:
vendor-advisory
x_transferred
Hyperlink: http://packetstormsecurity.com/files/162437/Google-Chrome-XOR-Typer-Out-Of-Bounds-Access-Remote-Code-Execution.html
Resource:
x_transferred
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/
Resource:
vendor-advisory
x_transferred
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/
Resource:
vendor-advisory
x_transferred
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/
Resource:
vendor-advisory
x_transferred
Hyperlink: http://packetstormsecurity.com/files/176210/Chrome-V8-JIT-XOR-Arbitrary-Code-Execution.html
Resource:
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-787CWE-787 Out-of-bounds Write
Type: CWE
CWE ID: CWE-787
Description: CWE-787 Out-of-bounds Write
Metrics
VersionBase scoreBase severityVector
3.18.8HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Metrics Other Info
kev
dateAdded:
2021-11-03
reference:
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21220
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
CVE-2021-21220 added to CISA KEV2021-11-03 00:00:00
Event: CVE-2021-21220 added to CISA KEV
Date: 2021-11-03 00:00:00
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21220
government-resource
Hyperlink: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21220
Resource:
government-resource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:chrome-cve-admin@google.com
Published At:26 Apr, 2021 | 17:15
Updated At:24 Oct, 2025 | 21:08

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
2021-11-032021-11-17Google Chromium V8 Improper Input Validation VulnerabilityApply updates per vendor instructions.
Date Added: 2021-11-03
Due Date: 2021-11-17
Vulnerability Name: Google Chromium V8 Improper Input Validation Vulnerability
Required Action: Apply updates per vendor instructions.
Metrics
TypeVersionBase scoreBase severityVector
Primary3.18.8HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Secondary3.18.8HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary2.06.8MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
Type: Primary
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Type: Primary
Version: 2.0
Base score: 6.8
Base severity: MEDIUM
Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:P
CPE Matches
Google LLC
google
>>chrome>>Versions before 89.0.4389.128(exclusive)
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Fedora Project
fedoraproject
>>fedora>>32
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
Fedora Project
fedoraproject
>>fedora>>33
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Fedora Project
fedoraproject
>>fedora>>34
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-787Primarynvd@nist.gov
CWE-787Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-787
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-787
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
http://packetstormsecurity.com/files/162437/Google-Chrome-XOR-Typer-Out-Of-Bounds-Access-Remote-Code-Execution.htmlchrome-cve-admin@google.com
Exploit
Third Party Advisory
VDB Entry
http://packetstormsecurity.com/files/176210/Chrome-V8-JIT-XOR-Arbitrary-Code-Execution.htmlchrome-cve-admin@google.com
Third Party Advisory
VDB Entry
https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.htmlchrome-cve-admin@google.com
Release Notes
https://crbug.com/1196683chrome-cve-admin@google.com
Exploit
Issue Tracking
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/chrome-cve-admin@google.com
Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/chrome-cve-admin@google.com
Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/chrome-cve-admin@google.com
Release Notes
https://security.gentoo.org/glsa/202104-08chrome-cve-admin@google.com
Third Party Advisory
http://packetstormsecurity.com/files/162437/Google-Chrome-XOR-Typer-Out-Of-Bounds-Access-Remote-Code-Execution.htmlaf854a3a-2127-422b-91ae-364da2661108
Exploit
Third Party Advisory
VDB Entry
http://packetstormsecurity.com/files/176210/Chrome-V8-JIT-XOR-Arbitrary-Code-Execution.htmlaf854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
VDB Entry
https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.htmlaf854a3a-2127-422b-91ae-364da2661108
Release Notes
https://crbug.com/1196683af854a3a-2127-422b-91ae-364da2661108
Exploit
Issue Tracking
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://security.gentoo.org/glsa/202104-08af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21220134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource
Hyperlink: http://packetstormsecurity.com/files/162437/Google-Chrome-XOR-Typer-Out-Of-Bounds-Access-Remote-Code-Execution.html
Source: chrome-cve-admin@google.com
Resource:
Exploit
Third Party Advisory
VDB Entry
Hyperlink: http://packetstormsecurity.com/files/176210/Chrome-V8-JIT-XOR-Arbitrary-Code-Execution.html
Source: chrome-cve-admin@google.com
Resource:
Third Party Advisory
VDB Entry
Hyperlink: https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html
Source: chrome-cve-admin@google.com
Resource:
Release Notes
Hyperlink: https://crbug.com/1196683
Source: chrome-cve-admin@google.com
Resource:
Exploit
Issue Tracking
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/
Source: chrome-cve-admin@google.com
Resource:
Release Notes
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/
Source: chrome-cve-admin@google.com
Resource:
Release Notes
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/
Source: chrome-cve-admin@google.com
Resource:
Release Notes
Hyperlink: https://security.gentoo.org/glsa/202104-08
Source: chrome-cve-admin@google.com
Resource:
Third Party Advisory
Hyperlink: http://packetstormsecurity.com/files/162437/Google-Chrome-XOR-Typer-Out-Of-Bounds-Access-Remote-Code-Execution.html
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Exploit
Third Party Advisory
VDB Entry
Hyperlink: http://packetstormsecurity.com/files/176210/Chrome-V8-JIT-XOR-Arbitrary-Code-Execution.html
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Third Party Advisory
VDB Entry
Hyperlink: https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Release Notes
Hyperlink: https://crbug.com/1196683
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Exploit
Issue Tracking
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Release Notes
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Release Notes
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Release Notes
Hyperlink: https://security.gentoo.org/glsa/202104-08
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Third Party Advisory
Hyperlink: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21220
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource:
US Government Resource

Change History

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Information is not available yet

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