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Vulnerability record · CVE-2020-6493 · published 3 June 2020

CVE-2020-6493: Google chrome use after free vulnerability

Google · Chrome

Use after free in WebAuthentication in Google Chrome prior to 83.0.4103.97 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

9.6 CVSS 3.1 Critical EPSS 1.7% · top 24.0% CWE-416 · Use after free
9.6CVSS 3.1 base score, v2 6.8
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

Description

Use after free in WebAuthentication in Google Chrome prior to 83.0.4103.97 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00034.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00038.html Third Party Advisory
https://chromereleases.googleblog.com/2020/06/stable-channel-update-for-desktop.html Vendor Advisory
https://crbug.com/1082105 Permissions Required
https://security.gentoo.org/glsa/202006-02 Third Party Advisory
https://www.debian.org/security/2020/dsa-4714 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00034.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00038.html Third Party Advisory
https://chromereleases.googleblog.com/2020/06/stable-channel-update-for-desktop.html Vendor Advisory
https://crbug.com/1082105 Permissions Required
https://security.gentoo.org/glsa/202006-02 Third Party Advisory
https://www.debian.org/security/2020/dsa-4714 Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-6493), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.