CVE-2020-15955

In s/qmail through 4.0.07, an active MitM can inject arbitrary plaintext commands into a STARTTLS encrypted session between an SMTP client and s/qmail. This allows e-mail messages and user credentials to be sent to the MitM attacker.
Command Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 66%
VendorProductVersion
fehcoms\/qmail
𝑥
≤ 4.0.07
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://nostarttls.secvuln.info/
https://www.fehcom.de/sqmail/sqmail.html
https://nostarttls.secvuln.info/
https://www.fehcom.de/sqmail/sqmail.html