Use After Free in Google Chrome
CVE-2020-6493
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.
Vulnerability class: Use-After-Free
EPSS: 0.017 (74.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
Affected products
- Google Chrome — versions unspecified
- Debian Debian_linux — versions 9.0, 10.0
- Opensuse Backports — versions sle-15
- Opensuse Leap — versions 15.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- chrome-cve-admin@google.com (Permissions Required, x_refsource_MISC)
- chrome-cve-admin@google.com (x_refsource_MISC, Vendor Advisory)
- chrome-cve-admin@google.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- chrome-cve-admin@google.com (vendor-advisory, Third Party Advisory, x_refsource_SUSE)
- chrome-cve-admin@google.com (vendor-advisory, Third Party Advisory, x_refsource_SUSE)
- chrome-cve-admin@google.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2020-6493?
- CVE-2020-6493 is a critical-severity vulnerability in Google Chrome, classified under Use After Free. CVSS score: 9.6/10. Published 2020-06-03.
- How severe is CVE-2020-6493?
- Critical severity. CVSS v3 base score is 9.6 out of 10.
- Is CVE-2020-6493 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.