PT-2026-56269 · Labcenter · Proteus

Michael Heinzl · Published 2026-07-07 · Updated 2026-07-08 · CVE-2026-42953

Positive Technologies (AI Summary)

CVSS v4.0

8.4

High

Base vector

AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions Labcenter Proteus version 9

Description An out-of-bounds write issue exists where an attacker can cause the program to write data beyond the end of an allocated memory buffer, potentially leading to arbitrary code execution.

Recommendations Update Labcenter Proteus version 9 to the latest patched version provided by the vendor.

Fix

RCE

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-42953

Affected Products

Proteus

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-42953 · Security Note
• https://cisa.gov/news-events/ics-advisories/icsa-26-188-06 · Note
• https://twitter.com/SecurityAr58409/status/2074664455678333087 · Twitter Post