CVE-2021-43537

An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash

published December 8, 2021

CVSS
—
EPSS
2%
Percentile
82.2
In the wild
Unconfirmed
What it is

An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02172 · 82.2th percentile
Published
2021-12-08T21:20Z
EPSS history
Timeline
  • 08 DEC 21:20Z
    An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash
    cvelistv5