CVE-2021-20617
CRITICAL EXPLOITED NUCLEIacmailer <4.0.1 - Command Injection
Title source: llmExploitation Summary
CVE-2021-20617 has been observed exploited in the wild (reported by VulnCheck KEV). A Nuclei detection template is also available.
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.
Nuclei Templates (1)
Acmailer - Improper Access Control to OS Command Injection
CRITICALVERIFIEDby daffainfo
Shodan:
title="ACMAILER4.0"
FOFA:
title="ACMAILER4.0"
References (2)
Core 2
Core References
Vendor Advisory x_refsource_misc
https://www.acmailer.jp/info/de.cgi?id=101
Third Party Advisory x_refsource_misc
https://jvn.jp/en/jp/JVN35906450/index.html
Scores
CVSS v3
9.8
EPSS
0.0787
EPSS Percentile
94.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
VulnCheck KEV
2024-12-05
Status
published
Products (2)
acmailer/acmailer
< 4.0.1
acmailer/acmailer_db
< 1.1.3
Published
Jan 14, 2021
Tracked Since
Feb 18, 2026