CVE-2021-43535

A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable…

published December 8, 2021

CVSS
—
EPSS
1%
Percentile
66.5
In the wild
Unconfirmed
What it is

A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.3, and Firefox ESR < 91.3.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01147 · 66.5th percentile
Published
2021-12-08T21:20Z
EPSS history
Timeline
  • 08 DEC 21:20Z
    A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable…
    cvelistv5