Advisory Details

April 6th, 2026

(0Day) Labcenter Electronics Proteus PDSPRJ File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

ZDI-26-257
ZDI-CAN-25720

CVE ID CVE-2026-5495
CVSS SCORE 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Labcenter Electronics
AFFECTED PRODUCTS Proteus
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Labcenter Electronics Proteus. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the processing of PDSPRJ files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS

04/14/25 - ZDI submitted the report to the vendor
10/10/25 – ZDI asked for updates
10/16/25 – the vendor communicated that the software and installer were no longer in production
11/06/25 – ZDI requested the product's EoL announcement
11/28/25 – ZDI notified the vendor of the intention to publish the case as  a zero-day advisory


DISCLOSURE TIMELINE
  • 2025-04-14 - Vulnerability reported to vendor
  • 2026-04-06 - Coordinated public release of advisory
  • 2026-04-06 - Advisory Updated
CREDIT Andrea Micalizzi aka rgod (@rgod777)
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