CVE-2026-24813
Unknown Unknown - Not Provided
NULL Pointer Dereference in SKRoot-linuxKernelRoot cJSON.Cpp

Publication date: 2026-01-27

Last updated on: 2026-01-27

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

Description
NULL Pointer Dereference vulnerability in abcz316 SKRoot-linuxKernelRoot (testRoot/jni/utils modules). This vulnerability is associated with program files cJSON.Cpp. This issue affects SKRoot-linuxKernelRoot.
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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
2026-06-14
NVD
CVE-2026-24813
EUVD
EUVD-2026-4833
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
abcz316 skroot-linuxkernelroot *
unknown_vendor cjson *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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Executive Summary

This vulnerability is a NULL Pointer Dereference issue in the SKRoot-linuxKernelRoot project, specifically in cloned functions derived from the cJSON library. The problem arose because these cloned functions did not have the security patches that were applied to the original cJSON code, which included NULL pointer checks. Without these checks, the program could attempt to access memory through a NULL pointer, leading to crashes or undefined behavior. The vulnerability was fixed by adding proper NULL pointer checks to these functions. [1]

Impact Analysis

This vulnerability can cause the affected software to crash or behave unpredictably due to NULL pointer dereferences. Such crashes can lead to denial of service or potentially be exploited to cause further security issues depending on the context of use. Since the vulnerability exists in a core utility module, it could impact the stability and reliability of systems using SKRoot-linuxKernelRoot. [1]

Mitigation Strategies

Apply the security patch that adds NULL pointer checks to the cloned functions derived from the cJSON library in the SKRoot-linuxKernelRoot project. This patch fixes the vulnerability by preventing NULL pointer dereferences. The patch is available in the GitHub pull request #116 for SKRoot-linuxKernelRoot and corresponds to the same fix applied in the original cJSON repository (commit 60ff122 by DaveGamble). [1]

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