CVE-2021-23167

6.8 mediumEPSS 0.4%

Medium (6.8) in gallagher command centre. EPSS 0.4% chance of exploitation in the next 30 days.

Improper certificate validation vulnerability in SMTP Client allows man-in-the-middle attack to retrieve sensitive information from the Command Centre Server. This issue affects: Gallagher Command Centre 8.50 versions prior to 8.50.2048 (MR3); 8.40 versions prior to 8.40.2063 (MR4); 8.30 versions prior to 8.30.1454 (MR4) ; version 8.20 and prior versions.

Severity

CVSS 3.1

6.8 medium

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 34% of CVEs (scores of 2026-10-31)
CWE: CWE-295
Published: 2021-11-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

gallagher:command_centre

References

https://security.gallagher.com/Security-Advisories/CVE-2021-23167
https://security.gallagher.com/Security-Advisories/CVE-2021-23167

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