What is CVE-2023-36556?

CVE-2023-36556 is a high-severity vulnerability in Fortinet Fortimail, classified under Incorrect Authorization. CVSS score: 8.6/10. Published 2023-10-10.

How severe is CVE-2023-36556?

High severity. CVSS v3 base score is 8.6 out of 10.

Auth bypass in Fortinet Fortimail

CVE-2023-36556

An incorrect authorization vulnerability [CWE-863] in FortiMail webmail version 7.2.0 through 7.2.2, version 7.0.0 through 7.0.5 and below 6.4.7 allows an authenticated attacker to login on other users accounts from the same web domain via…

Vulnerability class: Broken Access Control

EPSS: 0.004 (62.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:X/RC:C.

Affected products

Fortinet Fortimail — versions 7.2.0, 7.0.0, 6.4.0

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

https://fortiguard.com/psirt/FG-IR-23-202

Frequently asked questions

What is CVE-2023-36556?: CVE-2023-36556 is a high-severity vulnerability in Fortinet Fortimail, classified under Incorrect Authorization. CVSS score: 8.6/10. Published 2023-10-10.
How severe is CVE-2023-36556?: High severity. CVSS v3 base score is 8.6 out of 10.