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CVE-2021-23954

CVSS v3.1 8.8 (High)
88% Progress
CVSS v2.0 6.8 (Medium)
68% Progress
EPSS 0.29 % (70th)
0.29% Progress
Affected Products 3
Advisories 30
Info CVSS EPSS Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

Using the new logical assignment operators in a JavaScript switch statement could have caused a type confusion, leading to a memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.

Weaknesses
CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE Status
PUBLISHED
CNA
Mozilla Corporation
Published Date
2021-02-26 03:15:13
(3 years ago)
Updated Date
2021-03-03 20:58:49
(3 years ago)

Affected Products

Mozilla

Configuration #1

    CPE23 From Up To
  Mozilla Firefox prior 85.0 version cpe:2.3:a:mozilla:firefox < 85.0
  Mozilla Firefox Esr prior 78.7 version cpe:2.3:a:mozilla:firefox_esr < 78.7
  Mozilla Thunderbird prior 78.7 version cpe:2.3:a:mozilla:thunderbird < 78.7