# CVE-2026-50255: Sony Optical Disc Archive Software incorrect default permissions

Source: https://junglewise.ai/threats/cve-2026-50255-sony-optical-disc-archive-software-incorrect-default-permissions  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-16. Updated: 2026-06-16  
License: CC BY 4.0 with a link back

CVE-2026-50255 · Severity: medium · CVSS 6.7 · Published 2026-06-16

Sony Optical Disc Archive Software, used for managing high-capacity data storage, contains a security flaw in its Windows installer. An attacker with existing low-level access to a computer could exploit improper file permissions to run malicious code with full administrative (SYSTEM) privileges. This could lead to a complete takeover of the affected system and loss of data integrity.

Vendors: [Sony](https://junglewise.ai/threats/vendors/sony).

## Quick answers

**Is CVE-2026-50255 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-50255 being exploited in the wild.

**How severe is CVE-2026-50255?** Medium severity, with a CVSS score of 6.7, published 16 June 2026.

**Which products and versions are affected?** Sony Optical Disc Archive Software 5.5.3 and earlier.

**Is there a fix for CVE-2026-50255?** A patch was published on 2026-06-16: Fixed in version 5.5.4 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-50255 attacked?** It is attacked with local access, in a network appliance.

**Am I affected by CVE-2026-50255?** Check whether you run Sony Optical Disc Archive Software at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A vulnerability classified as Incorrect Default Permissions (CWE-276) exists in the installer for Sony Optical Disc Archive Software for Windows versions 5.5.3 and earlier. The flaw stems from improper file access permission settings established during installation. A local attacker with low-level privileges can exploit these weak permissions to replace or modify files, leading to arbitrary code execution with SYSTEM-level authority. Exploitation requires some user interaction and occurs under high-complexity conditions. Sony has addressed this issue in version 5.5.4.

## Affected products

- Sony Optical Disc Archive Software 5.5.3 and earlier

## Timeline

- 2026-06-16: disclosed
- 2026-06-16: advisory
- 2026-06-16: patched: Fixed in version 5.5.4

## References

- [https://jvn.jp/en/jp/JVN79926428/](https://jvn.jp/en/jp/JVN79926428/)
- [https://www.sony.com/electronics/support/software/00403421](https://www.sony.com/electronics/support/software/00403421)