CVE & CISA-KEV Catalog

CVE-2021-30547

HIGHEPSS 88th pctl

8.8

CVSS v3

Description

Out of bounds write in ANGLE in Google Chrome prior to 91.0.4472.101 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

chromiumDebian

Fixed in:93.0.4577.82-1CVE-2021-30547

Fixed in:93.0.4577.82-1CVE-2021-30547

Fixed in:93.0.4577.82-1CVE-2021-30547

Fixed in:93.0.4577.82-1CVE-2021-30547

firefoxUbuntu

Fixed in:90.0+build1-0ubuntu0.18.04.1USN-5011-1

Fixed in:90.0+build1-0ubuntu0.20.04.1USN-5011-1

thunderbirdUbuntu

Fixed in:1:78.13.0+build1-0ubuntu0.18.04.1USN-5058-1

Fixed in:1:78.13.0+build1-0ubuntu0.20.04.2USN-5058-1

DeveloperEditionWindows application

Affected:97.0Fixed in:97.0Mozilla

Google ChromeWindows application

Affected:91.0.4472.101Fixed in:91.0.4472.101Google LLC

Google Chrome (EXE)Windows application

Affected:91.0.4472.101Fixed in:91.0.4472.101Google LLC

Google Chrome BetaWindows application

Affected:91.0.4472.101Fixed in:91.0.4472.101Google LLC

Google Chrome Beta (EXE)Windows application

Affected:91.0.4472.101Fixed in:91.0.4472.101Google LLC

Google Chrome CanaryWindows application

Affected:91.0.4472.101Fixed in:91.0.4472.101Google LLC

Google Chrome DevWindows application

Affected:91.0.4472.101Fixed in:91.0.4472.101Google LLC

Google Chrome Dev (EXE)Windows application

Affected:91.0.4472.101Fixed in:91.0.4472.101Google LLC

Mozilla Firefox (en-US)Windows application

Affected:97.0Fixed in:97.0Mozilla

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

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

3.58%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Vendor Advisory1

chromereleases.googleblog.com

Third-Party Advisory7

Other references2

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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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.