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EUVD-2021-34000

🗓️ 03 Oct 2025 20:07:09Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 17 Views

Thunderbird versions before 91.4.1 misrepresented signature validity in signed emails with extra content.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
altlinux
ALT Linux
Security fix for the ALT Linux 10 package thunderbird version 91.4.1-alt1
27 Dec 202100:00
–altlinux
alpinelinux
AlpineLinux
CVE-2021-4126
22 Dec 202200:00
–alpinelinux
astralinux
AstraLinux
Astra Linux – Vulnerability in Thunderbird
14 Sep 202612:01
–astralinux
bdu_fstec
BDU FSTEC
Mozilla Thunderbird Spamming
4 Oct 202200:00
–bdu_fstec
cnnvd
CNNVD
Mozilla Thunderbird security vulnerabilities
20 Dec 202100:00
–cnnvd
cve
CVE
CVE-2021-4126
22 Dec 202200:00
–cve
cvelist
Cvelist
CVE-2021-4126
22 Dec 202200:00
–cvelist
debian
Debian
[SECURITY] [DLA 2874-1] thunderbird security update
4 Jan 202210:10
–debian
debian
Debian
[SECURITY] [DSA 5034-1] thunderbird security update
2 Jan 202217:01
–debian
debiancve
Debian CVE
CVE-2021-4126
22 Dec 202200:00
–debiancve
Rows per page
[
  {
    "enisaIdVendor": [
      {
        "id": "7b649066-2ed9-3d44-8996-e87ceb00a702",
        "vendor": {
          "name": "Mozilla"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "555886ff-6a78-3749-922c-4de963f1d29e",
        "product": {
          "name": "Thunderbird"
        },
        "product_version": "unspecified <91.4.1"
      }
    ]
  }
]

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03 Oct 2025 20:07Current
6.7Medium risk
Vulners AI Score6.7
CVSS 3.16.5
EPSS0.00461
SSVC
17