CVE-2021-29977

Mozilla developers reported memory safety bugs present in Firefox 89

published August 5, 2021

CVSS
—
EPSS
1%
Percentile
62.7
In the wild
Unconfirmed
What it is

Mozilla developers reported memory safety bugs present in Firefox 89. 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 < 90.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01009 · 62.7th percentile
Published
2021-08-05T19:46Z
EPSS history
Timeline
  • 05 AUG 19:46Z
    Mozilla developers reported memory safety bugs present in Firefox 89
    cvelistv5