pybddisasm up to 0.3.0 Instruction Decoding nd_decode out-of-bounds

Summaryinfo

A vulnerability classified as problematic was found in pybddisasm up to 0.3.0. The impacted element is the function nd_decode of the component Instruction Decoding. The manipulation results in out-of-bounds. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is identified as CVE-2026-118444. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in pybddisasm up to 0.3.0. It has been classified as problematic. Affected is the function nd_decode of the component Instruction Decoding. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality. CVE summarizes:

Out-of-bounds read vulnerabilities in the pybddisasm Python bindings may disclose adjacent process memory during instruction decoding. The nd_decode function may read up to 15 bytes without checking the actual length of the supplied Python buffer. The nd_decode_ex, nd_decode_ex2, and nd_decode_with_context functions pass the caller-supplied buffer size to the decoder without validating it against the actual length of the Python buffer. Data read beyond the buffer may be exposed through nd_get_instrux_bytes, which returns a fixed-length list of 16 bytes. Exploitation requires an application to invoke the affected APIs with a short buffer or an oversized length and to expose the resulting bytes to an attacker. The pybddisasm package is no longer maintained.

The advisory is available at pypi.org. This vulnerability is traded as CVE-2026-118444 since 10/28/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

• pybddisasm

Version

• 0.1
• 0.2
• 0.3.0

Support

• end of life

CPE 2.3info

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CPE 2.2info

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• 🔒
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