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CVE-2021-43534

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 4
Advisories 11
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 93 and Firefox ESR 91.2. 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 < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Weaknesses
CWE-787
Out-of-bounds Write
CVE Status
PUBLISHED
CNA
Mozilla Corporation
Published Date
2021-12-08 22:15:09
(2 years ago)
Updated Date
2022-03-17 19:45:50
(2 years ago)

Affected Products

Debian

Mozilla

Configuration #1

    CPE23 From Up To
  Mozilla Firefox prior 94.0 version cpe:2.3:a:mozilla:firefox < 94.0
  Mozilla Firefox Esr prior 91.3.0 version cpe:2.3:a:mozilla:firefox_esr < 91.3.0
  Mozilla Thunderbird prior 91.3.0 version cpe:2.3:a:mozilla:thunderbird < 91.3.0

Configuration #2

    CPE23 From Up To
  Debian Linux 9.0 cpe:2.3:o:debian:debian_linux:9.0
  Debian Linux 10.0 cpe:2.3:o:debian:debian_linux:10.0
  Debian Linux 11.0 cpe:2.3:o:debian:debian_linux:11.0