CVE-2021-23964

Mozilla developers reported memory safety bugs present in Firefox 84 and Firefox ESR 78.6

published February 26, 2021

CVSS
—
EPSS
1%
Percentile
71.5
In the wild
Unconfirmed
What it is

Mozilla developers reported memory safety bugs present in Firefox 84 and Firefox ESR 78.6. 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 < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01361 · 71.5th percentile
Published
2021-02-26T15:29Z
EPSS history
Timeline
  • 26 FEB 15:29Z
    Mozilla developers reported memory safety bugs present in Firefox 84 and Firefox ESR 78.6
    cvelistv5