What is CVE-2017-18911?

CVE-2017-18911 is a critical-severity vulnerability in Mattermost Mattermost_server, classified under Improper Certificate Validation. CVSS score: 9.1/10. Published 2020-06-19.

How severe is CVE-2017-18911?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Mattermost Mattermost_server

CVE-2017-18911

An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. The X.509 certificate validation can be skipped for a TLS-based e-mail server.

Vulnerability class: Improper Certificate Validation

EPSS: 0.007 (47.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Mattermost Mattermost_server
N/a — versions n/a

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2017-18911?: CVE-2017-18911 is a critical-severity vulnerability in Mattermost Mattermost_server, classified under Improper Certificate Validation. CVSS score: 9.1/10. Published 2020-06-19.
How severe is CVE-2017-18911?: Critical severity. CVSS v3 base score is 9.1 out of 10.