What is CVE-2021-20618?

CVE-2021-20618 is a critical-severity vulnerability in Acmailer, classified under Improper Privilege Management. CVSS score: 9.8/10. Published 2021-01-14.

How severe is CVE-2021-20618?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Privilege escalation in Acmailer

CVE-2021-20618

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.

Vulnerability class: Privilege Escalation

EPSS: 0.033 (87.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Acmailer
Acmailer Acmailer_db
Seeds Co.,ltd. Acmailer And Db — versions acmailer ver. 4.0.2 and earlier, and acmailer DB ver. 1.1.4 and earlier

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

vultures@jpcert.or.jp (x_refsource_MISC, Vendor Advisory)
vultures@jpcert.or.jp (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-20618?: CVE-2021-20618 is a critical-severity vulnerability in Acmailer, classified under Improper Privilege Management. CVSS score: 9.8/10. Published 2021-01-14.
How severe is CVE-2021-20618?: Critical severity. CVSS v3 base score is 9.8 out of 10.