Find out if you have vulnerabilities that put you at risk
Test your applicationsAPPLICATION
OPERATING SYSTEM
- M
Improper Certificate ValidationCVE-2020-12421
Affects thunderbird | Versions <1:68.10.0-1
Has fix
echo:latestPublished 26 Jul 2026
- M
Improper Certificate ValidationCVE-2020-12421
Affects firefox-esr | Versions <68.10.0esr-1
Has fix
echo:latestPublished 22 Jul 2026
- M
Improper Certificate ValidationCVE-2020-12421
Affects librewolf | Versions <78.0-r0
Has fix
alpine:3.24Published 11 Jun 2026
- M
Improper Certificate ValidationCVE-2020-12421
Affects thunderbird | Versions <68.10.0-r0
Has fix
alpine:3.23Published 4 Dec 2025
- M
Improper Certificate ValidationCVE-2020-12421
Affects librewolf | Versions <78.0-r0
Has fix
alpine:3.23Published 4 Dec 2025
- M
Improper Certificate ValidationCVE-2020-12421
Affects firefox | Versions <78.0-r0
Has fix
alpine:3.23Published 4 Dec 2025
- M
Improper Certificate ValidationCVE-2020-12421
Affects firefox-esr | Versions <68.10.0-r0
Has fix
alpine:3.23Published 4 Dec 2025
- M
Improper Certificate ValidationCVE-2020-12421
Affects thunderbird | Versions <1:68.10.0-1
Has fix
debian:14Published 10 Aug 2025
- M
Improper Certificate ValidationCVE-2020-12421
Affects firefox-esr | Versions <68.10.0esr-1
Has fix
debian:14Published 10 Aug 2025
- M
Improper Certificate ValidationCVE-2020-12421
Affects thunderbird | Versions <68.10.0-r0
Has fix
alpine:3.22Published 31 May 2025
- M
Improper Certificate ValidationCVE-2020-12421
Affects librewolf | Versions <78.0-r0
Has fix
alpine:3.22Published 31 May 2025
- M
Improper Certificate ValidationCVE-2020-12421
Affects firefox | Versions <78.0-r0
Has fix
alpine:3.22Published 31 May 2025
- M
Improper Certificate ValidationCVE-2020-12421
Affects firefox-esr | Versions <68.10.0-r0
Has fix
alpine:3.22Published 31 May 2025
- H
Improper Following of a Certificate's Chain of TrustCVE-2020-12421
Affects thunderbird | Versions <0:68.10.0-1.amzn2
Has fix
amzn:2Published 1 May 2025
- H
Improper Following of a Certificate's Chain of TrustCVE-2020-12421
Affects thunderbird-debuginfo | Versions <0:68.10.0-1.amzn2
Has fix
amzn:2Published 1 May 2025
- M
Improper Certificate ValidationCVE-2020-12421
Affects thunderbird | Versions <68.10.0-r0
Has fix
alpine:3.21Published 6 Dec 2024
- M
Improper Certificate ValidationCVE-2020-12421
Affects librewolf | Versions <78.0-r0
Has fix
alpine:3.21Published 6 Dec 2024
- M
Improper Certificate ValidationCVE-2020-12421
Affects firefox | Versions <78.0-r0
Has fix
alpine:3.21Published 6 Dec 2024
- M
Improper Certificate ValidationCVE-2020-12421
Affects firefox-esr | Versions <68.10.0-r0
Has fix
alpine:3.21Published 6 Dec 2024
- H
Improper Following of a Certificate's Chain of TrustCVE-2020-12421
Affects thunderbird | Versions <0:68.10.0-1.el7_8
Has fix
rhel:7Published 17 Sept 2024
- H
Improper Following of a Certificate's Chain of TrustCVE-2020-12421
Affects firefox | Versions <0:68.10.0-1.el7_8
Has fix
rhel:7Published 17 Sept 2024
- M
Improper Certificate ValidationCVE-2020-12421
Affects thunderbird | Versions <68.10.0-r0
Has fix
alpine:3.20Published 23 May 2024
- M
Improper Certificate ValidationCVE-2020-12421
Affects firefox | Versions <78.0-r0
Has fix
alpine:3.20Published 23 May 2024
- M
Improper Certificate ValidationCVE-2020-12421
Affects firefox-esr | Versions <68.10.0-r0
Has fix
alpine:3.20Published 23 May 2024
- L
Improper Certificate ValidationCVE-2020-12421
Affects thunderbird | Versions <1:68.10.0+build1-0ubuntu1
Has fix
ubuntu:24.04Published 29 Apr 2024
- M
Improper Certificate ValidationCVE-2020-12421
Affects firefox | Versions <78.0.1+build1-0ubuntu1
Has fix
ubuntu:24.04Published 29 Apr 2024
- M
Improper Certificate ValidationCVE-2020-12421
Affects thunderbird | Versions <68.10.0-r0
Has fix
alpine:3.19Published 8 Dec 2023
- M
Improper Certificate ValidationCVE-2020-12421
Affects firefox | Versions <78.0-r0
Has fix
alpine:3.19Published 8 Dec 2023
- M
Improper Certificate ValidationCVE-2020-12421
Affects firefox-esr | Versions <68.10.0-r0
Has fix
alpine:3.19Published 8 Dec 2023
- H
Improper Following of a Certificate's Chain of TrustCVE-2020-12421
Affects thunderbird | Versions <0:68.10.0-1.amzn2
Has fix
amzn:2Published 22 Feb 2023