CVE-2020-26974

Description

When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

CVSS Version 3.1
CVSS Version 2.0

nvd
CVE ID: CVE-2020-26974
Base Score: 8.8
Base Severity: HIGH
Vector String:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.8

nvd
CVE ID: CVE-2020-26974
Base Score: 6.8
Base Severity: MEDIUM
Vector String:AV:N/AC:M/Au:N/C:P/I:P/A:P

Refrence: NVD

Description​

Description