CVE-2021-29984

Instruction reordering resulted in a sequence of instructions that would cause an object to be incorrectly considered during garbage collection

published August 17, 2021

CVSS
—
EPSS
1%
Percentile
72.0
In the wild
Unconfirmed
What it is

Instruction reordering resulted in a sequence of instructions that would cause an object to be incorrectly considered during garbage collection. This led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01386 · 72.0th percentile
Published
2021-08-17T19:12Z
EPSS history
Timeline
  • 17 AUG 19:12Z
    Instruction reordering resulted in a sequence of instructions that would cause an object to be incorrectly considered during garbage collection
    cvelistv5