How severe is CVE-2023-24590?

CVE-2023-24590 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-24590 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-24590?

CVE-2023-24590 affects Gallagher Controller 6000 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-24590?

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

When was CVE-2023-24590 published?

CVE-2023-24590 was published on 2023-12-18 and last updated on 2026-06-17.

CVE-2023-24590

CVE-2023-24590 is a high-severity vulnerability in Gallagher Controller 6000 Firmware with a CVSS 3.x base score of 7.5. 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-134.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-134
Affected product: Gallagher Controller 6000 Firmware
Published: 2023-12-18
Last modified: 2026-06-17

Description

A format string issue in the Controller 6000's optional diagnostic web interface can be used to write/read from memory, and in some instances crash the Controller 6000 leading to a Denial of Service. This issue affects: Gallagher Controller 6000 8.60 prior to vCR8.60.231116a (distributed in 8.60.2550 (MR7)), all versions of 8.50 and prior.

Frequently asked questions

What is CVE-2023-24590?: A format string issue in the Controller 6000's optional diagnostic web interface can be used to write/read from memory, and in some instances crash the Controller 6000 leading to a Denial of Service. This issue affects: Gallagher Controller 6000 8.60 prior to vCR8.60.231116a (distributed in 8.60.2550 (MR7)), all versions of 8.50 and prior.
How severe is CVE-2023-24590?: CVE-2023-24590 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-24590 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-24590?: CVE-2023-24590 affects Gallagher Controller 6000 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-24590?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-24590 published?: CVE-2023-24590 was published on 2023-12-18 and last updated on 2026-06-17.

References

https://security.gallagher.com/Security-Advisories/CVE-2023-24590

Affected products (1)

cpe:2.3:o:gallagher:controller_6000_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Gallagher Controller 6000 Firmware

CVE-2023-24584 — High (CVSS 7.5): Controller 6000 is vulnerable to a buffer overflow via the Controller diagnostic web interface upload feature.…
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CVE-2023-22439 — Low (CVSS 3.1): Improper input validation of a large HTTP request in the Controller 6000 and Controller 7000 optional diagnostic web…
CVE-2023-41967 — Low (CVSS 2.4): Sensitive information uncleared after debug/power state transition in the Controller 6000 could be abused by an…

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Other CWE-134 vulnerabilities

CVE-2012-1851 — Critical (CVSS 10.0): Format string vulnerability in the Print Spooler service in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2,…
CVE-2012-0242 — Critical (CVSS 10.0): Format string vulnerability in Advantech/BroadWin WebAccess before 7.0 allows remote attackers to execute arbitrary…
CVE-2011-2475 — Critical (CVSS 10.0): Format string vulnerability in ECTrace.dll in the iMailGateway service in the Internet Mail Gateway in OneBridge Server…
CVE-2011-1568 — Critical (CVSS 10.0): Format string vulnerability in the logText function in shmemmgr9.dll in IGSSdataServer.exe 9.00.00.11074, and…
CVE-2010-4235 — Critical (CVSS 10.0): Format string vulnerability in RealNetworks Helix Server 12.x, 13.x, and 14.x before 14.2, and Helix Mobile Server…
CVE-2011-0270 — Critical (CVSS 10.0): Format string vulnerability in nnmRptConfig.exe in HP OpenView Network Node Manager (OV NNM) 7.51 and 7.53 allows…

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