CVE-2025-30176 Memory corruption in SIMATIC PCS neo V4.1
Unauthenticated remote attackers can cause denial of service in Siemens industrial automation products via an out-of-bounds read in the UMC component.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-30176?
CVE-2025-30176 is a high-severity memory corruption vulnerability in Siemens SIMATIC PCS neo V4.1, published on 13 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), SINEC NMS (All versions < V4.0), SINEMA Remote Connect (All versions), Totally Integrated Automation Portal (TIA Portal) V17 (All versions), Totally Integrated Automation Portal (TIA Portal) V18 (All versions), Totally Integrated Automation Portal (TIA Portal) V19 (All versions), Totally Integrated Automation Portal (TIA Portal) V20 (All versions), User Management Component (UMC) (All versions < V2.15.1.1). Affected products contain a out of bound read buffer overflow vulnerability in the integrated UMC component. This could allow an unauthenticated remote attacker to cause a denial of service condition.
Weakness: CWE-125
Which versions are affected by CVE-2025-30176?
It affects 5 products.
Products include Siemens Simatic Pcs Neo, Siemens Sinec Nms, Siemens Sinema Remote Connect, Siemens Totally Integrated Automation Portal, Siemens User Management Component.
How do I fix CVE-2025-30176?
No fix has been published for CVE-2025-30176 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-30176 being exploited?
There is no known exploitation of CVE-2025-30176 in the wild and no public exploit code.
Other vulnerabilities in Siemens SIMATIC PCS neo V4.1
Sources
Also known as GHSA-rq2h-x4xh-35w4.