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Command Centre CVE-2023-23576

MEDIUM
Incorrect Behavior Order (CWE-696)
2023-12-18 disclosures@gallagher.com
Information Disclosure Command Centre Gallagher
4.3
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-696
ASVS 5.0
V15 - Secure Coding and Architecture Incorrect behavior order
Impact

CVSS score of 4.3 (MEDIUM). Attack characteristics: physical attack vector, low complexity, low privileges required, no user interaction not required.
Exploit ScenarioDerived

Successful exploitation could compromise the medium-severity affected system.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAI

Incorrect behavior order in the Command Centre Server could allow privileged users to gain physical access to the site for longer than intended after a network outage when competencies are used in. Rated medium severity (CVSS 4.3), this vulnerability is low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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Technical ContextAI · show details

This vulnerability is classified under CWE-696. Incorrect behavior order in the Command Centre Server could allow privileged users to gain physical access to the site for longer than intended after a network outage when competencies are used in the access decision. This issue affects: Gallagher Command Centre: 8.90 prior to vEL8.90.1620 (MR2), 8.80 prior to vEL8.80.1369 (MR3), 8.70 prior to vEL8.70.2375 (MR5), 8.60 prior to vEL8.60.2550 (MR7), all versions of 8.50 and prior. Affected products include: Gallagher Command Centre.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 4.3 MEDIUM
AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Physical
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

DescriptionNVD

Incorrect behavior order in the Command Centre Server could allow privileged users to gain physical access to the site for longer than intended after a network outage when competencies are used in the access decision.

This issue affects: Gallagher Command Centre: 8.90 prior to vEL8.90.1620 (MR2), 8.80 prior to vEL8.80.1369 (MR3), 8.70 prior to vEL8.70.2375 (MR5), 8.60 prior to vEL8.60.2550 (MR7), all versions of 8.50 and prior.

Threat Intelligence Overview

EPSS Score
0.3%
Top 80% exploitable
Data Quality
2 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.3%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

22
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +22
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:gallagher:command_centre:*:*:*:*:*:*:*:*
cpe:2.3:a:gallagher:command_centre:*:*:*:*:*:*:*:*
cpe:2.3:a:gallagher:command_centre:*:*:*:*:*:*:*:*
cpe:2.3:a:gallagher:command_centre:*:*:*:*:*:*:*:*
cpe:2.3:a:gallagher:command_centre:*:*:*:*:*:*:*:*

More in Command Centre

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CVE-2020-16098 CRITICAL
9.8 Sep 15

It is possible to enumerate access card credentials via an unauthenticated network connection to the server in versions

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9.8 Aug 28

An issue was discovered in Gallagher Command Centre 8.10 before 8.10.1092(MR2). Rated critical severity (CVSS 9.8), this
CVE-2021-23140 HIGH
8.8 Jun 11

Improper Authorization vulnerability in Gallagher Command Centre Server allows command line macros to be modified by an

CVE-2020-16103 HIGH
8.8 Dec 14

Type confusion in Gallagher Command Centre Server allows a remote attacker to crash the server or possibly cause remote

CVE-2020-16102 HIGH
8.2 Dec 14

Improper Authentication vulnerability in Gallagher Command Centre Server allows an unauthenticated remote attacker to cr
CVE-2023-23570 HIGH
8.1 Dec 18

Client-Side enforcement of Server-Side security for the Command Centre server could be bypassed and lead to invalid conf
CVE-2021-23205 HIGH
8.1 Jun 11

Improper Encoding or Escaping in Gallagher Command Centre Server allows a Command Centre Operator to alter the configura
CVE-2021-23197 HIGH
7.8 Nov 18

Unquoted service path vulnerability in the Gallagher Controller Service allows an unprivileged user to execute arbitrary
CVE-2020-16096 HIGH
7.7 Sep 15

In Gallagher Command Centre versions 8.10 prior to 8.10.1134(MR4), 8.00 prior to 8.00.1161(MR5), 7.90 prior to 7.90.991(
CVE-2023-22363 HIGH
7.5 Jul 25

A stack-based buffer overflow in the Command Centre Server allows an attacker to cause a denial of service attack via as
CVE-2021-23146 HIGH
7.5 Nov 18

An Incomplete Comparison with Missing Factors vulnerability in the Gallagher Controller allows an attacker to bypass PIV
CVE-2020-16101 HIGH
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It is possible for an unauthenticated remote DCOM websocket connection to crash the Command Centre service due to an out

Same weakness CWE-696 – Incorrect Behavior Order

View all
CVE-2026-41254 HIGH POC
7.5
CVE-2021-31379 HIGH POC
7.5
CVE-2026-44108 CRITICAL
9.3
CVE-2026-45033 HIGH
8.5
CVE-2026-14169 HIGH
8.1
CVE-2026-35386 HIGH
8.1
CVE-2026-110450 HIGH
8.0
CVE-2026-105745 HIGH POC
7.8

Same technique Information Disclosure

View all
CVE-2019-2725 CRITICAL POC
9.8
CVE-2021-34523 CRITICAL POC
9.0
CVE-2013-2251 CRITICAL POC
9.8
CVE-2017-5638 CRITICAL POC
9.8
CVE-2025-24813 CRITICAL POC
9.8
CVE-2025-68613 HIGH POC
8.8
CVE-2015-1701 HIGH POC
7.8
CVE-2017-0147 HIGH POC
7.5

References

Advisories & patches
ADVISORY https://security.gallagher.com/Security-Advisories/CVE-2023-23576

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