Improper Access Control in AppEngine Fileaccess by SICK
CVE-2026-11841

9.4CRITICAL

Key Information:

Vendor

Sick Ag

Status
Inspectorp61x
Inspectorp62x
Inspectorp65x
Inspectorp63x
Vendor
CVE Published:
28 July 2026

What is CVE-2026-11841?

An improper access control vulnerability in SICK's AppEngine allows attackers to perform unauthenticated read and write operations on sensitive filesystem components through HTTP. This exposure leads to the unintended accessibility of critical directory files, including device parameter files, enabling attackers to manipulate application settings and potentially execute arbitrary Lua code within the AppEngine's sandbox environment. The flaw arises from insufficient access restrictions for the HTTP-based file access feature, posing significant risks to application integrity and security.

Affected Version(s)

InspectorP61x 0

InspectorP62x 0

InspectorP63x all versions

References

https://www.sick.com/psirt
x_SICK PSIRT Security Advisories
https://www.sick.com/media/docs/9/19/719/special_informat...
x_SICK Operating Guidelines
https://www.cisa.gov/resources-tools/resources/ics-recomm...
x_ICS-CERT recommended practices on Industrial Security

CVSS V3.1

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.