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CVE-2020-26974

CVSS v3.1 8.8 (High)
88% Progress
CVSS v2.0 6.8 (Medium)
68% Progress
EPSS 0.37 % (73th)
0.37% Progress
Affected Products 3
Advisories 27
Info CVSS EPSS Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

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.

Weaknesses
CWE-787
Out-of-bounds Write
CVE Status
PUBLISHED
CNA
Mozilla Corporation
Published Date
2021-01-07 14:15:12
(3 years ago)
Updated Date
2021-01-12 14:56:45
(3 years ago)

Affected Products

Mozilla

Configuration #1

    CPE23 From Up To
  Mozilla Firefox prior 84.0 version cpe:2.3:a:mozilla:firefox < 84.0
  Mozilla Firefox Esr prior 78.6.0 version cpe:2.3:a:mozilla:firefox_esr < 78.6.0
  Mozilla Thunderbird prior 78.6.0 version cpe:2.3:a:mozilla:thunderbird < 78.6.0