SB2026040712 - Multiple vulnerabilities in Labcenter Electronics Proteus

Description

This security bulletin contains information about 4 vulnerabilities.

1) Type Confusion (CVE-ID: CVE-2026-5496)

CWE-ID: CWE-843 - Type confusion

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a type confusion error. A remote attacker can trick a victim to open a specially crafted PDSPRJ file, trigger a type confusion error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

2) Out-of-bounds write (CVE-ID: CVE-2026-5495)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input. A remote attacker can create a specially crafted PDSPRJ file, trick the victim into opening it using the affected software, trigger an out-of-bounds write and execute arbitrary code on the target system.

3) Out-of-bounds write (CVE-ID: CVE-2026-5494)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input. A remote attacker can create a specially crafted PDSPRJ file, trick the victim into opening it using the affected software, trigger an out-of-bounds write and execute arbitrary code on the target system.

4) Out-of-bounds write (CVE-ID: CVE-2026-5493)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input. A remote attacker can create a specially crafted PDSPRJ file, trick the victim into opening it using the affected software, trigger an out-of-bounds write and execute arbitrary code on the target system.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• https://www.zerodayinitiative.com/advisories/ZDI-26-254/
• https://www.zerodayinitiative.com/advisories/ZDI-26-257/
• https://www.zerodayinitiative.com/advisories/ZDI-26-256/
• https://www.zerodayinitiative.com/advisories/ZDI-26-255/