How severe is CVE-2021-23230?

CVE-2021-23230 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-23230 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-23230?

CVE-2021-23230 primarily affects Gallagher Command Centre. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-23230?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-23230 published?

CVE-2021-23230 was published on 2021-06-11 and last updated on 2026-06-17.

CVE-2021-23230

CVE-2021-23230 is a critical-severity vulnerability in Gallagher Command Centre with a CVSS 3.x base score of 9.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.9)
CVSS v2: 3.5
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Gallagher Command Centre
Published: 2021-06-11
Last modified: 2026-06-17

Description

A SQL Injection vulnerability in the OPCUA interface of Gallagher Command Centre allows a remote unprivileged Command Centre Operator to modify Command Centre databases undetected. This issue affects: Gallagher Command Centre 8.40 versions prior to 8.40.1888 (MR3); 8.30 versions prior to 8.30.1359 (MR3); 8.20 versions prior to 8.20.1259 (MR5); 8.10 versions prior to 8.10.1284 (MR7); version 8.00 and prior versions.

Frequently asked questions

What is CVE-2021-23230?: A SQL Injection vulnerability in the OPCUA interface of Gallagher Command Centre allows a remote unprivileged Command Centre Operator to modify Command Centre databases undetected. This issue affects: Gallagher Command Centre 8.40 versions prior to 8.40.1888 (MR3); 8.30 versions prior to 8.30.1359 (MR3); 8.20 versions prior to 8.20.1259 (MR5); 8.10 versions prior to 8.10.1284 (MR7); version 8.00 and prior versions.
How severe is CVE-2021-23230?: CVE-2021-23230 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-23230 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-23230?: CVE-2021-23230 primarily affects Gallagher Command Centre. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-23230?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-23230 published?: CVE-2021-23230 was published on 2021-06-11 and last updated on 2026-06-17.

References

https://security.gallagher.com/Security-Advisories/CVE-2021-23230

Affected products (5)

cpe:2.3:a:gallagher:command_centre:*:*:*:*:*:*:*:*
cpe:2.3:a:gallagher:command_centre:8.10.1284:-:*:*:*:*:*:*
cpe:2.3:a:gallagher:command_centre:8.20.1259:-:*:*:*:*:*:*
cpe:2.3:a:gallagher:command_centre:8.30.1359:-:*:*:*:*:*:*
cpe:2.3:a:gallagher:command_centre:8.40.1888:-:*:*:*:*:*:*

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