What’s Vulnerable › Vulnerabilities

CVE-2021-20617

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 7.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-01-14 · updated 2026-06-17

Description

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.

Affected products

• Acmailer: through 4.0.1
• Acmailer Db: through 1.1.3

References

• https://jvn.jp/en/jp/JVN35906450/index.html
• https://www.acmailer.jp/info/de.cgi?id=101
• https://jvn.jp/en/jp/JVN35906450/index.html
• https://www.acmailer.jp/info/de.cgi?id=101

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