Public vulnerability disclosure

CVE-2026-118448

Uninitialized output buffer returned after nd_to_text failure in pybddisasm

publishedCWE-457

A use of uninitialized memory vulnerability in the pybddisasm Python bindings affects nd_to_text. If the underlying text conversion fails, including failures caused by invalid parameters, the output buffer may remain uninitialized while still being converted into a Python return value. This may disclose residual process memory or cause the Python process to crash. Exploitation requires an application to invoke nd_to_text in a way that causes conversion to fail and to return or otherwise use the resulting output. The pybddisasm package is no longer maintained.

Technical severity6.9 mediumCVSS 4.0 · CNA: Bitdefender
Published2026-11-03Source updated 2026-11-03
Collected2026-11-032 attributed sources

Fixes and workarounds

Fix

Discontinue use of the unmaintained pybddisasm package. No fixed release will become available.

Source: CNA: Bitdefender

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
pybddisasm
Bitdefender
pybddisasm
https://pypi.org
≥ 0; ≤ 0.3.0 (affected, python)
Other versions: unknown
CNA: Bitdefender

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
4.0 / 6.9
medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:NCNA: Bitdefender
4.0 / 6.9
medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XNVD: [email protected]

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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