VDB
DEBIAN-CVE-2021-43541
DEBIAN-CVE-2021-43541
PUBLISHED
CVSS 6.5 MEDIUM
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.
Risk Scores
CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | firefox-esr | 78.14.0esr-1, 78.14.0esr-1~deb10u1, 78.14.0esr-1~deb11u1 |
| Debian:14 | thunderbird | 0, 0, 0 |
| Debian:12 | thunderbird | 0, 0, 0 |
| Debian:13 | thunderbird | 0, 0, 0 |
| Debian:12 | firefox-esr | 0, 0, 0 |
| Debian:13 | firefox-esr | 0, 0, 0 |
| Debian:11 | thunderbird | 1:91.2.0-1, 1:91.3.0-1, 1:91.3.2-1 |
| Debian:14 | firefox-esr | 0, 0, 0 |
Exploit Intelligence
- cve_test.go (github-poc)
- cve_test.go (github-poc)
Timeline
- Dec 8, 2021 CVE Published
- Apr 28, 2026 CVE Updated