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TI-2020-12567 Aliases CVE-2020-15955GHSA-3hf7-p43g-vpv6

In s/qmail through 4.0.07, an active MitM can inject arbitrary plaintext commands into a…

Priority LOW 28CWE-77Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-77.

Summary

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.

Why it matters now

EPSS 0.0095 61st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:fehcom:s\/qmail:*:*:*:*:*:*:*:*up to 4.0.07VulnerableFehcom
  • cpe:2.3:a:fehcom:s\/qmail:*:*:*:*:*:*:*:* Versions up to 4.0.07 Vulnerable ·Fehcom

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-15955
  2. 2026-10-03 Alias added: GHSA-3hf7-p43g-vpv6

References

Patch 1

Advisory 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences