critical · CVSS v3 9.1 · CVSS v4 4.8
CVE-2026-118444
Out-of-bounds read vulnerabilities in the pybddisasm Python bindings may disclose adjacent process memory during instruc…
Description
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 The pybddisasm package is no longer maintained.
Scores
- Severity
- critical
- CVSS v2
- 6.4
- CVSS v3
- 9.1
- CVSS v4
- 4.8
- EPSS
- —