CVE-2020-12397

By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird displays

published May 22, 2020

CVSS
—
EPSS
1%
Percentile
48.7
In the wild
Unconfirmed
What it is

By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird displays. This vulnerability affects Thunderbird < 68.8.0.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00612 · 48.7th percentile
Published
2020-05-22T18:57Z
EPSS history
Timeline
  • 22 MAY 18:57Z
    By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird displays
    cvelistv5