CVE-2021-23987

Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8

published March 31, 2021

CVSS
—
EPSS
1%
Percentile
72.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01416 · 72.5th percentile
Published
2021-03-31T13:40Z
EPSS history
Timeline
  • 31 MAR 13:40Z
    Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8
    cvelistv5