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CVE Record

CVE-2021-20793: Untrusted search path vulnerability in the installer of Sony Audio USB Driver V1.10 and prior and the insta...

Untrusted search path vulnerability in the installer of Sony Audio USB Driver V1.10 and prior and the installer of HAP Music Transfer Ver.1.3.0 and prior allows an attacker to gain privileges and execute arbitrary code via a Trojan horse DLL in an unspecified directory.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This CVE concerns older Sony installer packages. If a user runs a vulnerable installer from an unsafe location, a malicious DLL placed there could be loaded, letting an attacker run code with the installer's privileges. The issue is about installer handling, not normal daily use of the installed software.

Executive priority

Handle as a targeted hygiene issue, not a confirmed emergency. Prioritize organizations that use Sony audio products, maintain legacy installer shares, or allow users to run installers with elevated privileges.

Technical view

CVE-2021-20793 is an untrusted search path issue in Sony Audio USB Driver installer V1.10 and prior, and HAP Music Transfer installer Ver.1.3.0 and prior. The CVE/JVN description says arbitrary code execution and privilege gain are possible via a Trojan horse DLL in an unspecified directory.

Likely exposure

Exposure is most likely where organizations retain, distribute, or run the affected Sony installers on Windows systems. Risk depends on installer execution and attacker ability to influence files in the installer search path.

Exploitation context

The source bundle does not cite active exploitation, and KEV status is false. Public details are limited; no exploit steps, affected directories, CVSS score, or named CWE are provided in the supplied sources.

Researcher notes

Evidence is sparse. The key unknowns are the exact DLL search path condition, whether updated installers are available on the referenced Sony pages, and whether any practical exploitation has been observed outside the advisory text.

Mitigation direction

  • Check Sony and JVN guidance for current safe installer downloads.
  • Remove affected legacy installers from software repositories and shared drives.
  • Avoid running installers from untrusted or user-writable directories.
  • Limit installer execution to trusted administrative workflows.
  • Treat unexpected DLLs near installer files as suspicious.

Validation and detection

  • Inventory stored Sony Audio USB Driver and HAP Music Transfer installers.
  • Confirm installer versions are newer than the affected versions, where available.
  • Review endpoint and software distribution locations for legacy copies.
  • Verify admin workstations do not run installers from untrusted paths.
  • Check vendor pages for any replacement or removal instructions.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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CVE-2021-20793 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Sony CorporationThe installers of multiple Sony productsThe installer of Sony Audio USB Driver V1.10 and prior and The installer of HAP Music Transfer Ver.1.3.0 and priorListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.