CVE-2020-26970

When reading SMTP server status codes, Thunderbird writes an integer value to a position on the stack that is intended to contain just one byte

published December 9, 2020

CVSS
—
EPSS
1%
Percentile
69.1
In the wild
Unconfirmed
What it is

When reading SMTP server status codes, Thunderbird writes an integer value to a position on the stack that is intended to contain just one byte. Depending on processor architecture and stack layout, this leads to stack corruption that may be exploitable. This vulnerability affects Thunderbird < 78.5.1.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01247 · 69.1th percentile
Published
2020-12-09T00:26Z
EPSS history
Timeline
  • 09 DEC 00:26Z
    When reading SMTP server status codes, Thunderbird writes an integer value to a position on the stack that is intended to contain just one byte
    cvelistv5