Review reviewHigh

CVE-2026-42953

Labcenter Proteus

The application contains an out-of-bounds write vulnerability that can be exploited by an attacker to cause the program to write data past the end of an allocated memory buffer. This can lead to arbitrary code execution.

CVSS
8.4
EPSS
0.14%
3.85% percentile
CISA KEV
Not listed
Published
2026.07.08
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.14%
Technical severityCVSS 8.4

Vulnerability overview

The application contains an out-of-bounds write vulnerability that can be exploited by an attacker to cause the program to write data past the end of an allocated memory buffer. This can lead to arbitrary code execution.

Affected product and versions

Product
Labcenter Proteus
Affected versions
9.1_SP4_Build-42914
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Labcenter Proteus and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
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: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
CWE
CWE-787
CVE-2026-42953 — Labcenter Proteus | SECUFOCUS NOW