CVE-2026-12216
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk2th percentile - higher than 2% of all known CVEs
Summary
In the Duktape library (up to version 2.99.99), a weakness was found in the file duk_api_bytecode.c. Manipulation of the count_instr argument can lead to memory corruption. The attack requires local access and an exploit has been published.
Risk Assessment
The risk includes local memory corruption, which could lead to application crashes or potential privilege escalation.
Recommendation
It is recommended to update Duktape to the latest version if available, or apply temporary mitigations restricting local access.
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Original NVD description (English source)
A weakness has been identified in svaarala duktape up to 2.99.99. This issue affects some unknown processing of the file duk_api_bytecode.c. Executing a manipulation of the argument count_instr can lead to memory corruption. The attack requires local access. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

