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TI-2026-84185 Aliases CVE-2026-118446GHSA-wqpq-pvq4-433g

Use-after-free in pybddisasm INSTRUX array members

Priority LOW 29CWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Bitdefender pybddisasm through 0.3.0 contains a use-after-free flaw (CWE-416) in array-valued members of INSTRUX objects, including ND_OPERAND arrays. The Python lists returned for these arrays reference memory owned by the parent INSTRUX object, and keeping them does not keep that memory alive. A local application that retains an element and accesses it after the parent object is freed can read process memory or crash the Python process.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

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 The pybddisasm package is no longer maintained.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00105 1st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Bitdefenderpybddisasmup to 0.3.0—No fix listedCNA
  • pybddisasm VendorBitdefender Affected up to 0.3.0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for pybddisasm. The pybddisasm package is no longer maintained.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Timeline

  1. 2026-11-03 Threatist record created from CVE-2026-118446
  2. 2026-11-03 Alias added: GHSA-wqpq-pvq4-433g
  3. 2026-11-03 CISA SSVC decision points changed
  4. 2026-11-03 Priority changed: MEDIUM → LOW

References

Other 1

  • TI-2024-02065 Privilege Escalation via the GravityZone productManager UpdateServer.KitsManager API (VA-11466) CVSS 3.1CRITICAL 9.8
  • TI-2007-05541 Unspecified vulnerability in BitDefender allows attackers to execute arbitrary code via… CVSS 3.1CRITICAL 9.8
  • TI-2012-01283 The Gzip file parser in AVG Anti-Virus 10.0.0.1190, Bitdefender 7.2, Command Antivirus… CVSS 2.0MEDIUM 4.3
  • TI-2012-01281 The TAR file parser in AhnLab V3 Internet Security 2011.01.18.00, Avira AntiVir… CVSS 2.0MEDIUM 4.3
  • TI-2012-01279 The TAR file parser in Avira AntiVir 7.11.1.163, Antiy Labs AVL SDK 2.0.3.7, avast!… CVSS 2.0MEDIUM 4.3
  • TI-2012-01265 The RAR file parser in ClamAV 0.96.4, Rising Antivirus 22.83.00.03, Quick Heal (aka Cat… CVSS 2.0MEDIUM 4.3
See all 111 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences