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Servers and applications

CVE-2021-38371

The STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending.

Severity
High 7.5
Published
10 Aug 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
EximServers and applications · cpe:a:exim:exim
  • Every version up to 4.94.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-38371
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-38371