CVE-2021-21200

MEDIUMNVD 5.45.4—

5.4

Out of bounds read in WebUI Settings in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chrome security severity: Low)

CVSS v3: 5.4
EG Score: 5.4(medium)
EPSS: 41.8%
KEV: Not listed

Published

January 2, 2023

Last Modified

November 21, 2024

References (4)

chrome-cve-admin@googlehttps://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.html
chrome-cve-admin@googlehttps://crbug.com/1164816
af854a3a-2127-422b-91ae-364da2661108https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.html
af854a3a-2127-422b-91ae-364da2661108https://crbug.com/1164816

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-125Out-of-bounds Read

Data Freshness Timeline

(refreshed 15× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(5)

What is CVE-2021-21200?

CVE-2021-21200 is a medium vulnerability published on January 2, 2023. Out of bounds read in WebUI Settings in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chrome security severity: Low)

When was CVE-2021-21200 disclosed?

CVE-2021-21200 was first published in the National Vulnerability Database on January 2, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-21200 actively exploited?

CVE-2021-21200 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 41.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-21200?

CVE-2021-21200 has a CVSS v3 base score of 5.4 (NVD).

How do I remediate CVE-2021-21200?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-21200, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-21200

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-21200?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (4)

Frequently asked(5)

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