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Incorrect Default PermissionsWeakness · CWE-276

CVE-2026-50255

MEDIUM · 6.7 CVSS v3.0 Published 2026-06-16
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
67/100
Remediation priority · Elevated

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Incorrect default permissions issue exists in Optical Disc Archive Software for Windows 5.5.3 and earlier. If this vulnerability is exploited, arbitrary code may be executed with SYSTEM privileges.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

Incorrect default permissions in Optical Disc Archive Software for Windows 5.5.3 and earlier allow local attackers to modify executable files or gain elevated privileges, leading to arbitrary code execution with SYSTEM-level access. This is a privilege escalation vulnerability stemming from overly permissive file system permissions on the application installation.

MitigationApply the vendor patch or upgrade to a version later than 5.5.3 that corrects the default permission settings. As a compensating control, restrict file system permissions on the application installation directory to follow least-privilege principles until the patch can be applied.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Optical Disc Archive Software installation path
    Open Windows Explorer and navigate to C:\Program Files or C:\Program Files (x86) and look for folders named 'Optical Disc Archive', 'ODA', 'Sony Optical Disc Archive', or similar. Also check C:\Program Files\Sony for Sony-related software installations.
    Affected if The software is installed in a directory that is writable by non-administrative users.
  2. Determine installed software version
    Right-click the main executable (look for .exe files like ODA.exe, OpticalDiscArchive.exe, or similar in the installation folder) and select Properties, then check the Details tab for the File Version. Alternatively, open Control Panel > Programs and Features and look for 'Optical Disc Archive' or 'Sony Optical Disc Archive' to see the installed version.
    Affected if The installed version is 5.5.3 or earlier.
  3. Inspect installation directory permissions
    Right-click the software installation folder, select Properties, go to the Security tab, and examine the permissions for Users and Authenticated Users groups. Check if these groups have Write or Modify permissions.
    Affected if Users or Authenticated Users have Write or Modify permissions on the installation directory.
  4. Verify executable file modifiability
    Navigate to the installation folder, right-click on .exe files, select Properties, go to Security tab, and check the permissions for standard user accounts. Attempt to create or modify a test file in the directory using a non-admin account if possible.
    Affected if Standard (non-privileged) users can write or modify .exe files in the installation directory.
  5. Check for Everyone or Users group write access
    In the Security tab of the installation folder properties, examine the permissions list. Look for 'Everyone', 'Users', or 'Authenticated Users' entries that include Write, Modify, or Full Control permissions.
    Affected if The Everyone or Users group has Write, Modify, or Full Control permissions on the installation directory.

A user is affected if the Optical Disc Archive Software version is 5.5.3 or earlier AND the installation directory grants Write or Modify permissions to non-administrative users, allowing potential privilege escalation to SYSTEM level.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the vendor patch or upgrade to a version later than 5.5.3 that corrects the default permission settings. As a compensating control, restrict file system permissions on the application installation directory to follow least-privilege principles until the patch can be applied.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-50255 in production — separate from our analysis above.

No notes yet

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What this is

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What belongs here
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