Vulnerability Database · NuGet · MimeKit · Version
MimeKit 3.3.0
3.3.0 is affected by 2 vulnerabilities.
The vulnerabilities that cover this exact version are listed below with the fixed version to move to.
Critical 0 High 1 Medium 1 Low 0 Unrated 0
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Released 11 Jun 2022
Licence MIT
Also known from other sources 2
Newer releases 84
Database updated 23/Oct/2026
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01 Vulnerabilities affecting this version
MimeKit 3.3.0 vulnerabilities
2 vulnerabilities cover MimeKit 3.3.0. Open the full list in the database.
| Vulnerability | Severity | Fixed version | Disclosed |
|---|---|---|---|
| Denial of Service Vulnerability in MimeKit | 7.5 high | 4.7.1 | 11 Jul 2024 |
| CVE-2026-30227: MimeKit CRLF Injection Vulnerability Leading to SMTP Command Injection and Email Forgery | 6.9 medium | 4.15.1 | 05 Mar 2026 |
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Questions
About MimeKit 3.3.0
Is MimeKit 3.3.0 vulnerable?
Yes. 2 vulnerabilities in the Vulert database cover MimeKit 3.3.0: 0 critical, 1 high, 1 medium and 0 low. Each entry above names the fixed version to move to.
Is 3.3.0 the latest release of MimeKit?
No. 3.3.0 was published 11 Jun 2022, and newer releases exist. Newer is not automatically safer — the version table on the package page shows what each release carries.
How do I monitor MimeKit for upcoming vulnerabilities?
Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the MimeKit version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.