CVE-2021-43541

When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was not properly escaped

published December 8, 2021

CVSS
—
EPSS
2%
Percentile
76.9
In the wild
Unconfirmed
What it is

When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was not properly escaped. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01694 · 76.9th percentile
Published
2021-12-08T21:20Z
EPSS history
Timeline
  • 08 DEC 21:20Z
    When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was not properly escaped
    cvelistv5