CVE-2026-5495
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 · uneditedLabcenter Electronics Proteus PDSPRJ File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. 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. Was ZDI-CAN-25720.
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 · high confidenceLabcenter Electronics Proteus contains an out-of-bounds write vulnerability in its PDSPRJ file parser. The flaw results from insufficient validation of user-supplied data during file parsing, allowing a write operation to extend past the end of an allocated memory buffer. Attackers can exploit this by tricking users into opening malicious PDSPRJ files, achieving arbitrary code execution in the context of the current process.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 8.17CVSS 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
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:L/AC:L/PR:N/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 checksWork through these to decide whether this CVE applies to you.
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Verify Labcenter Proteus installationCheck for Labcenter Proteus installation by searching common installation directories (typically C:\Program Files\Labcenter Electronics\Proteus X) or inspecting installed programs in system settingsAffected if Labcenter Proteus is present on the system
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Identify installed Proteus versionLocate the Proteus executable (often PDS.exe or similar) and check its version properties, or view the version in Add/Remove ProgramsAffected if The installed version is exactly 8.17
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Confirm PDSPRJ file handling capabilityVerify that the Proteus installation includes PDSPRJ file association or file parsing capabilities by checking for .pdsprj file type handlers in the system or within the application's file open dialogsAffected if PDSPRJ files can be opened or parsed by the installed Proteus application
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Review PDSPRJ file interaction patternsExamine recent file access logs, browser download history, or email attachments to determine if PDSPRJ files from untrusted or unknown sources have been opened recentlyAffected if PDSPRJ files from untrusted or unknown sources have been opened or are likely to be opened
User is affected if Labcenter Proteus version 8.17 is installed AND the system handles PDSPRJ files that could originate from untrusted sources.
Generated from the published advisory. Verify against your own configuration.
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 dataAvoid opening PDSPRJ files from untrusted or unknown sources. Apply vendor patches when available and monitor Labcenter Electronics for security updates.
- Consultation4.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-5495 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-5495 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data