CVE-2026-118446: fallo de gravedad media en Bitdefender pybddisasm
Use-after-free in INSTRUX array members in pybddisasm
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 6.9epss 0.1%
A use-after-free vulnerability in the pybddisasm Python bindings affects array-valued members of INSTRUX objects, including ND_OPERAND arrays. These arrays are exposed as Python lists whose elements reference memory owned by the parent INSTRUX object. Retaining a list or an element does not keep the parent allocation alive. Accessing an element after the parent INSTRUX object has been freed therefore accesses freed memory. Depending on how the element is used and whether the freed allocation has been reused, this may expose process memory or cause the Python process to crash. Exploitation requires an application to retain and subsequently access an array element after the parent object has been freed. The pybddisasm package is no longer maintained.
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
Productos afectados
Bitdefender · pybddisasmCVEs relacionadas — Bitdefender pybddisasm
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-118448MEDIUMUninitialized output buffer returned after nd_to_text failure in pybddisasmEPSS 0.1%CVE-2026-118447MEDIUMUninitialized INSTRUX contents returned after decoding failure in pybddisasmEPSS 0.1%CVE-2026-118445MEDIUMUse-after-free in INSTRUX structure members in pybddisasmEPSS 0.1%CVE-2026-118444MEDIUMOut-of-bounds reads during instruction decoding in pybddisasmEPSS 0.1%
Referencias
https://pypi.org/project/pybddisasm/