HOMEVULNERABILITIESCVE-2020-16100
HIGH

CVE-2020-16100

CWE-404Published: September 15, 2020· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

It is possible for an unauthenticated remote DCOM websocket connection to crash the Command Centre service's DCOM websocket thread due to improper shutdown of closed websocket connections, preventing it from accepting future DCOM websocket (Configuration Client) connections. Affected versions are v8.20 prior to v8.20.1166(MR3), v8.10 prior to v8.10.1211(MR5), v8.00 prior to v8.00.1228(MR6), all versions of 7.90 and earlier.

NVD Source

Technical Analysis

CVE-2020-16100 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

gallagher1 product(s)
command centre
Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://security.gallagher.com/Security-Advisories/CVE-2020-16100
ADVISORYhttps://security.gallagher.com/Security-Advisories/CVE-2020-16100

All References (2)

→
https://security.gallagher.com/Security-Advisories/CVE-2020-16100Vendor Advisory
→
https://security.gallagher.com/Security-Advisories/CVE-2020-16100Vendor Advisory

Quick Facts

CVE IDCVE-2020-16100
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-404
CISA KEVNo
Affected1 vendor(s)
PublishedSep 15, 2020

Related CVEs (CWE-404)

CVE-2025-5867
9.8
CVE-2023-24444
9.8
CVE-2018-8450
8.8
CVE-2026-1876
8.7
CVE-2026-1875
8.7
CVE-2026-11317
8.7

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-16100 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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