CVE-2026-50093

Root compromise via unrestricted OIS file upload

Published Sep 8, 2026 · Updated Sep 8, 2026

Unrestricted file upload in Siemens Siveillance Control and Control Pro allows remote authenticated users to gain OIS root access. The OIS web module accepts arbitrary files for upload to its server, but Siemens has not disclosed the endpoint or failed validation. Exploitation requires low privileges, adjacent-network access, and an additional attack condition, and it can fully compromise the OIS host.

CVSS severity9.0
Critical
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in Siemens Siveillance Control and Control Pro allows remote authenticated users to gain OIS root access. The OIS web module accepts arbitrary files for upload to its server, but Siemens has not disclosed the endpoint or failed validation. Exploitation requires low privileges, adjacent-network access, and an additional attack condition, and it can fully compromise the OIS host.

The record

CVE
CVE-2026-50093
Published
Sep 8, 2026
Updated
Sep 8, 2026
Vendor
Siemens AG
Product
Siveillance Control
Classifications
CWE-434, T1068
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <V3.0.22.2177
  2. Affected versionversion=0 <V4.0.11.2177

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Siemens AG · Siveillance Controlversion=0 <V3.0.22.2177; version=0 <V4.0.11.2177
Siemens AG · Siveillance Control Proversion=0 <V3.0.12.2173; version=0 <V4.0.9.2178

Published CVSS scores

9.0Siemens AGCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
8.9Siemens AGCVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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