CVE-2026-24830
Unknown Unknown - Not Provided
Integer Overflow in Ralim IronOS Before v2.23-rc

Publication date: 2026-01-27

Last updated on: 2026-01-27

Assigner: Government Technology Agency of Singapore Cyber Security Group (GovTech CSG)

Description
Integer Overflow or Wraparound vulnerability in Ralim IronOS.This issue affects IronOS: before v2.23-rc2.
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Meta Information
Published
2026-01-27
Last Modified
2026-01-27
Generated
2026-06-16
AI Q&A
2026-01-27
EPSS Evaluated
2026-06-15
NVD
CVE-2026-24830
EUVD
EUVD-2026-4840
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
ralim ironos to 2.23-rc2 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-190 The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
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Executive Summary

This vulnerability is an Integer Overflow or Wraparound issue in the IronOS operating system, specifically in the function xQueueGenericCreate(). It occurs because the function did not have a critical security patch that was applied to the original FreeRTOS implementation. The overflow can happen during queue creation when adding values, potentially leading to unexpected behavior or security risks. The issue was fixed by adding an assertion to prevent addition overflow during queue creation. [1]

Impact Analysis

The vulnerability can lead to severe impacts including complete compromise of confidentiality, integrity, and availability of the affected system, as indicated by the high CVSS score (9.8) with high impact on confidentiality, integrity, and availability. An attacker could exploit the integer overflow to cause unexpected behavior, potentially allowing remote code execution or denial of service without any privileges or user interaction. [1]

Detection Guidance

This vulnerability relates to an integer overflow in the xQueueGenericCreate() function in IronOS. Detection would involve auditing the IronOS version running on your system to check if it is before v2.23-rc2, as those versions are affected. There are no specific network detection commands provided. To detect the vulnerable code, you can check the IronOS source code or firmware version. No direct commands for detection on a running system or network are provided in the resources. [1]

Mitigation Strategies

The immediate mitigation step is to update IronOS to version v2.23-rc2 or later, where the vulnerability has been fixed by applying a patch that adds an assertion to prevent addition overflow during queue creation. Applying this update will eliminate the security risk associated with CVE-2026-24830. [1]

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