CVE-2021-29945

The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash

published June 24, 2021

CVSS
—
EPSS
1%
Percentile
68.0
In the wild
Unconfirmed
What it is

The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash. *Note: This issue only affected x86-32 platforms. Other platforms are unaffected.*. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01202 · 68.0th percentile
Published
2021-06-24T13:19Z
EPSS history
Timeline
  • 24 JUN 13:19Z
    The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash
    cvelistv5