CVE & CISA-KEV Catalog

CVE-2021-21221

MEDIUMEPSS 72th pctl

6.5

CVSS v3

Description

Insufficient validation of untrusted input in Mojo in Google Chrome prior to 90.0.4430.72 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page.

CWE-20Improper Input Validation

How to fix

Remediation Available

chromiumDebian

Fixed in:90.0.4430.72-1CVE-2021-21221

Fixed in:90.0.4430.72-1CVE-2021-21221

Fixed in:90.0.4430.72-1CVE-2021-21221

Fixed in:90.0.4430.72-1CVE-2021-21221

Google ChromeWindows application

Affected:90.0.4430.72Fixed in:90.0.4430.72Google LLC

Google Chrome (EXE)Windows application

Affected:90.0.4430.72Fixed in:90.0.4430.72Google LLC

Google Chrome BetaWindows application

Affected:90.0.4430.72Fixed in:90.0.4430.72Google LLC

Google Chrome Beta (EXE)Windows application

Affected:90.0.4430.72Fixed in:90.0.4430.72Google LLC

Google Chrome CanaryWindows application

Affected:90.0.4430.72Fixed in:90.0.4430.72Google LLC

Google Chrome DevWindows application

Affected:90.0.4430.72Fixed in:90.0.4430.72Google LLC

Google Chrome Dev (EXE)Windows application

Affected:90.0.4430.72Fixed in:90.0.4430.72Google LLC

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.57%probability of exploitation in 30 days

72ndpercentile

Elevated risk: more likely to be exploited than 72% of all known CVEs.

References

Third-Party Advisory4

Other references3

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

Embed a live status badge for CVE-2021-21221

Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.