CVE-2020-26959

During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a use-after-free, memory corruption, and a…

published December 9, 2020

CVSS
—
EPSS
1%
Percentile
70.1
In the wild
Unconfirmed
What it is

During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a use-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01297 · 70.1th percentile
Published
2020-12-09T00:22Z
EPSS history
Timeline
  • 09 DEC 00:22Z
    During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a use-after-free, memory corruption, and a…
    cvelistv5