Description
A use of uninitialized memory vulnerability in the pybddisasm Python bindings may disclose process memory when instruction decoding fails. The nd_decode, nd_decode_ex, nd_decode_ex2, and nd_decode_with_context functions may return an INSTRUX object whose contents have not been initialized after an unsuccessful decoding operation, including failures caused by invalid parameters. Accessing members of the returned object may expose residual process memory. Exploitation requires an application to access and expose the returned object contents after a decoding failure. The pybddisasm package is no longer maintained.
Published: 2026-11-03
Score: 4.8 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

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

Tracking

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Advisories

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References
Link Providers
https://pypi.org/project/pybddisasm/ cve-icon cve-icon
History

Tue, 03 Nov 2026 09:15:00 +0000

Type Values Removed Values Added
Description A use of uninitialized memory vulnerability in the pybddisasm Python bindings may disclose process memory when instruction decoding fails. The nd_decode, nd_decode_ex, nd_decode_ex2, and nd_decode_with_context functions may return an INSTRUX object whose contents have not been initialized after an unsuccessful decoding operation, including failures caused by invalid parameters. Accessing members of the returned object may expose residual process memory. Exploitation requires an application to access and expose the returned object contents after a decoding failure. The pybddisasm package is no longer maintained.
Title Uninitialized INSTRUX contents returned after decoding failure in pybddisasm
Weaknesses CWE-457
References
Metrics cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: Bitdefender

Published:

Updated: 2026-11-03T09:01:09.075Z

Reserved: 2026-10-28T08:25:09.716Z

Link: CVE-2026-118447

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-03T09:17:11.387

Modified: 2026-11-03T09:17:11.387

Link: CVE-2026-118447

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-03T10:30:13Z

Weaknesses
  • CWE-457

    Use of Uninitialized Variable