Vulnerability · Published Nov 3, 2026 · Assigned by Bitdefender
CVE-2026-118448Uninitialized output buffer returned after nd_to_text failure in pybddisasm
Medium 6.9
In plain English
A medium-severity security flaw in pybddisasm from Bitdefender. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).
Official description
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 The pybddisasm package is no longer maintained.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | python3.10 | no fix listed | UBUNTU-CVE-2026-118448 |
| Ubuntu:24.04:LTS | python3.12 | no fix listed | UBUNTU-CVE-2026-118448 |
| Ubuntu:26.04:LTS | python3.14 | no fix listed | UBUNTU-CVE-2026-118448 |
| Ubuntu:26.10 | python3.14 | no fix listed | UBUNTU-CVE-2026-118448 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Bitdefender | pybddisasm | 0 – through 0.3.0 |
Weakness: CWE-457 · Vector: 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