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TI-2021-03844 Aliases CVE-2021-20617GHSA-6456-hr4p-p4pq

Improper access control vulnerability in acmailer ver.

Priority MEDIUM 52Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Improper access control vulnerability in acmailer ver. 4.0.1 and earlier, and acmailer DB ver. 1.1.3 and earlier allows remote attackers to execute an arbitrary OS command, or gain an administrative privilege which may result in obtaining the sensitive information on the server via unspecified vectors.

Why it matters now

EPSS 0.07413 94th 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
Seeds Co.,Ltd.acmailer and acmailer DBacmailer ver. 4.0.1 and earlier, and acmailer DB ver. 1.1.3 and earlier—No fix listedCNA
  • acmailer and acmailer DB VendorSeeds Co.,Ltd. Affected acmailer ver. 4.0.1 and earlier, and acmailer DB ver. 1.1.3 and earlier Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:acmailer:acmailer:*:*:*:*:*:*:*:*up to 4.0.1VulnerableAcmailer
cpe:2.3:a:acmailer:acmailer_db:*:*:*:*:*:*:*:*up to 1.1.3VulnerableAcmailer
  • cpe:2.3:a:acmailer:acmailer:*:*:*:*:*:*:*:* Versions up to 4.0.1 Vulnerable ·Acmailer
  • cpe:2.3:a:acmailer:acmailer_db:*:*:*:*:*:*:*:* Versions up to 1.1.3 Vulnerable ·Acmailer

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-20617
  2. 2026-10-03 Alias added: GHSA-6456-hr4p-p4pq

References

Advisory 2

  • TI-2021-03845 Improper privilege management in Seeds Co.,Ltd. acmailer and acmailer DB CVSS 3.1CRITICAL 9.8
  • TI-2016-01048 Seeds acmailer before 3.8.21 and 3.9.x before 3.9.15 Beta allows remote authenticated… CVSS 3.0CRITICAL 9.1
  • TI-2014-03169 Multiple cross-site request forgery (CSRF) vulnerabilities in CGI programs in Seeds… CVSS 2.0MEDIUM 6.8
  • TI-2015-02625 Directory traversal vulnerability in Seeds acmailer before 3.8.18 and 3.9.x before 3.9.12… CVSS 2.0MEDIUM 5.5

Sources

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