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High

Local privilege escalation in Siemens SINEC INS via cap_dac_override capability

IdentifiersCVE-2026-46748CWE-250· Execution with Unnecessary…

CVE-2026-46748 affects Siemens SINEC INS in all versions earlier than V1.0 SP2 Update 6. The vulnerability is caused by an affected binary being configured with the Linux capability cap_dac_override. That capability permits the process to bypass normal file system permission checks, which can lead to unrestricted access to the file system. In practice, this creates a local privilege escalation condition in which a local attacker can abuse the over-privileged binary to perform arbitrary file modification and ultimately obtain root privileges on the affected system.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can allow a local attacker to bypass file permission enforcement, gain unrestricted file system access, modify arbitrary files, escalate privileges, and obtain root-level control of the affected host. This implies high impact to confidentiality, integrity, and availability of the system.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce local attack surface by restricting local access to trusted users only, monitoring and auditing the affected binary and its file capabilities, and removing or correcting the unnecessary cap_dac_override capability where operationally feasible and vendor support permits. Information on additional vendor-approved mitigations is currently not available.

Remediation

Patch, then assume compromise.

Upgrade Siemens SINEC INS to V1.0 SP2 Update 6 or later, which is the fixed version identified in the available advisory information.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
SiemensSinec Insapplication

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What this page doesn’t show

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Exposure mapping

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Threat actor evidence

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Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity5

Community discussion across Reddit, Mastodon, and other social sources.