CyberSecBulletin
CVE-2026-50093NVD status: Deferred

Siveillance Control Pro V3.0: Unrestricted Upload of File with Dangerous Type

Published Updated By the CyberSecBulletin desk

CVE-2026-50093 is a critical-severity unrestricted upload of file with dangerous type vulnerability in Siveillance Control Pro V3.0 from Siemens, with a CVSS 3.1 base score of 9.0 out of 10. It can be exploited from the same local network by an attacker with a low-privileged account, without any action from a user. The record lists version V3.0.12.2173 as the first without the flaw, so updating Siveillance Control Pro V3.0 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.32% chance of exploitation within 30 days, which is low compared with other CVEs.

Patch this week

Critical severity: a successful attack would have severe impact.

What to do

  1. Update Siveillance Control Pro V3.0 to V3.0.12.2173 or a later version.
  2. Update Siveillance Control Pro V4.0 to V4.0.9.2178 or a later version.
  3. Update Siveillance Control V3.0 to V3.0.22.2177 or a later version.

Affected products and versions

VendorProductAffected versionsFixed in
SiemensSiveillance Control Pro V3.0before V3.0.12.2173V3.0.12.2173
SiemensSiveillance Control Pro V4.0before V4.0.9.2178V4.0.9.2178
SiemensSiveillance Control V3.0before V3.0.22.2177V3.0.22.2177
SiemensSiveillance Control V4.0before V4.0.11.2177V4.0.11.2177

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
AdjacentThe attacker must be on the same local network segment.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
User interaction
NoneNo action by a victim is required.
Scope
ChangedThe attack can reach beyond the vulnerable component into other systems.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H. Scored by CNA (siemens.com).

Scoring systemScoreSeverityScored by
CVSS 4.08.9HighCNA (siemens.com)
CVSS 3.19.0CriticalCNA (siemens.com)

Official description

A vulnerability has been identified in Siveillance Control Pro V3.0 (All versions < V3.0.12.2173), Siveillance Control Pro V4.0 (All versions < V4.0.9.2178), Siveillance Control V3.0 (All versions < V3.0.22.2177), Siveillance Control V4.0 (All versions < V4.0.11.2177). A vulnerability in the OIS web module allows an attacker to upload arbitrary files to the server. Successful exploitation of this vulnerability could allow an attacker to gain root access on the host system, potentially leading to a full compromise of the affected OIS environment.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Unrestricted Upload of File with Dangerous Type

The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

How developers prevent this class of flaw

  • Generate a new, unique filename for an uploaded file instead of using the user-supplied filename, so that no external input is used at all.
  • When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.
  • Consider storing the uploaded files outside of the web document root entirely. Then, use other mechanisms to deliver the files dynamically.

More Unrestricted Upload of File with Dangerous Type vulnerabilities (CWE-434)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).

References

Recent Unrestricted Upload of File with Dangerous Type vulnerabilities

Spotted an error? Tell us.