When was CVE-2021-4055 disclosed?

CVE-2021-4055 was first published in the National Vulnerability Database on December 23, 2021, 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-2021-4055 actively exploited?

CVE-2021-4055 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 67.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-4055?

CVE-2021-4055 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2021-4055?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-4055, 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.

CVE-2021-4055

HIGHNVD 8.88.8—

8.8

Heap buffer overflow in extensions in Google Chrome prior to 96.0.4664.93 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 67.4%
KEV: Not listed

References (10)

chrome-cve-admin@googlehttps://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop.html
chrome-cve-admin@googlehttps://crbug.com/1266510
chrome-cve-admin@googlehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3W46HRT2UVHWSLZB6JZHQF6JNQWKV744/
chrome-cve-admin@googlehttps://security.gentoo.org/glsa/202208-25
chrome-cve-admin@googlehttps://www.debian.org/security/2022/dsa-5046
af854a3a-2127-422b-91ae-364da2661108https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop.html
af854a3a-2127-422b-91ae-364da2661108https://crbug.com/1266510
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3W46HRT2UVHWSLZB6JZHQF6JNQWKV744/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202208-25
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2022/dsa-5046

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CVE-2021-4055

Published

Last Modified

References (10)

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-4055?

CVE-2021-4055

📅 Published

🔄 Last Modified

🔗 References (10)

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-4055?

Published

Last Modified

References (10)

Frequently asked(5)