What is CVE-2020-16099?

CVE-2020-16099 is a medium-severity vulnerability in Gallagher Command Centre, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2020-09-15.

How severe is CVE-2020-16099?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Improper input validation in Gallagher Command Centre

CVE-2020-16099

In Gallagher Command Centre v8.20 prior to v8.20.1093(MR2) it is possible to create Guard Tour events that when accessed via things like reporting cause clients to temporarily hang or disconnect.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2020-09-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.008 (54.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Gallagher Command Centre — versions 8.20
Gallagher Command Centre — versions 8.20.1093

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

security.gallagher.com/Security-Advisories/CVE-2020-16099 (Vendor Advisory)

Frequently asked questions

What is CVE-2020-16099?: CVE-2020-16099 is a medium-severity vulnerability in Gallagher Command Centre, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2020-09-15.
How severe is CVE-2020-16099?: Medium severity. CVSS v3 base score is 4.3 out of 10.