ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2025-30033

The affected setup component is vulnerable to DLL hijacking.

Published Aug 12, 2025 · catalog updated Oct 13, 2026 · Siemens SIMATIC WinCC Visualization Architect (SiVArc) V19

Last checked Oct 27, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-30033. EPSS is 0.21%. Act only if a listed version of Siemens SIMATIC WinCC Visualization Architect (SiVArc) V19 is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.21%
Remediation
Version ranges on file
Affected products
vendor Siemens SIMATIC WinCC Visualization Architect (SiVArc) V19 0 <V19 Update 4

The affected setup component is vulnerable to DLL hijacking. This could allow an attacker to execute arbitrary code when a legitimate user installs an application that uses the affected setup component.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Siemens SIMATIC WinCC Visualization Architect (SiVArc) V19 0 <V19 Update 40 <V19 Update 4

How to fix CVE-2025-30033

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-30033. EPSS is 0.21%. Act only if a listed version of Siemens SIMATIC WinCC Visualization Architect (SiVArc) V19 is installed.

Which versions are affected?

Compare what you have installed with Siemens SIMATIC WinCC Visualization Architect (SiVArc) V19 0 <V19 Update 4 0 <V19 Update 4. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.21%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 12, 2025 · EUVD

    Detected

    The affected setup component is vulnerable to DLL hijacking. This could allow an attacker to execute arbitrary code when a legitimate user installs an application that uses the affected setup component.

  2. Oct 13, 2026 · EUVD

    Updated

    The affected setup component is vulnerable to DLL hijacking. This could allow an attacker to execute arbitrary code when a legitimate user installs an application that uses the affected setup component.

Sources

  • CVE.orgVulnerability recordCVE-2025-30033

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-30033

    30-day exploitation probability 0.21%

    first.org
  • EUVDVulnerability recordEUVD-2025-24250

    The affected setup component is vulnerable to DLL hijacking. This could allow an attacker to execute arbitrary code when a legitimate user installs an application that uses the affected setup component.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 27, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 24, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 20, 2026