SB2026061749 - Multiple vulnerabilities in Siemens SINEC INS

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Main Vulnerability Database SB2026061749

SB2026061749 - Multiple vulnerabilities in Siemens SINEC INS

Published: June 17, 2026

Security Bulletin ID SB2026061749
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 75% Low 25%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) OS Command Injection (CVE-ID: CVE-2026-46746)

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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


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

The vulnerability exists due to improper input validation in the /api/sftp/uploadFiles endpoint. A remote user can pass specially crafted data to the application and execute arbitrary OS commands on the target system.

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


2) Path traversal (CVE-ID: CVE-2026-46747)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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


The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in the GET /api/sftp/uploadFiles endpoint. A remote user can send a specially crafted HTTP request and read arbitrary files on the system.


3) Execution with unnecessary privileges (CVE-ID: CVE-2026-46748)

CWE-ID: CWE-250 - Execution with Unnecessary Privileges

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


The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to the affected system includes a binary that is configured with the cap_dac_override capability. A remote user can gain elevated privileges on the target system.


4) Use of a One-Way Hash with a Predictable Salt (CVE-ID: CVE-2026-46749)

CWE-ID: CWE-760 - Use of a One-Way Hash with a Predictable Salt

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


The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to a use of a one-way hash with a predictable salt. A local administrator can recover user passwords and gain unauthorized access to the system.


Remediation

Install update from vendor's website.

References