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CVE-2021-23987

CVSS v3.1 8.8 (High)
88% Progress
CVSS v2.0 6.8 (Medium)
68% Progress
EPSS 0.27 % (68th)
0.27% Progress
Affected Products 3
Advisories 28
Info CVSS EPSS Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

Weaknesses
CWE-787
Out-of-bounds Write
CVE Status
PUBLISHED
CNA
Mozilla Corporation
Published Date
2021-03-31 14:15:19
(3 years ago)
Updated Date
2022-05-03 16:04:40
(2 years ago)

Affected Products

Mozilla

Configuration #1

    CPE23 From Up To
  Mozilla Firefox prior 87.0 version cpe:2.3:a:mozilla:firefox < 87.0
  Mozilla Firefox Esr prior 78.9 version cpe:2.3:a:mozilla:firefox_esr < 78.9
  Mozilla Thunderbird prior 78.9 version cpe:2.3:a:mozilla:thunderbird < 78.9