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CVE-2021-20618

CRITICAL
9.8
CVSS Score
Published: January 14, 2021 at 08:20 AM UTC
Updated: June 17, 2026 at 03:34 AM UTC
3 products affected across 2 vendorsAcmailerAcmailer DBacmailer and acmailer DB

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Severity
CRITICAL9.8
Exploit prediction
EPSS 3%

Description

Privilege chaining vulnerability in acmailer ver. 4.0.2 and earlier, and acmailer DB ver. 1.1.4 and earlier allows remote attackers to bypass authentication and to gain an administrative privilege which may result in obtaining the sensitive information on the server via unspecified vectors.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCThird Party Advisory
Source: [email protected]
https://jvn.jp/en/jp/JVN35906450/index.html
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.acmailer.jp/info/de.cgi?id=101

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-269

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