OOB Buffer Overflow in Siemens UMC (SIMATIC PCS neo, TIA Portal) – DoS
CVE-2025-30175 Published on May 13, 2025
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 write buffer overflow vulnerability in the integrated UMC component. This could allow an unauthenticated remote attacker to cause a denial of service condition.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2025-30175 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2025-30175
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Affected Versions
Siemens SIMATIC PCS neo V4.1:- Before * is affected.
- Before * is affected.
- Before V4.0 is affected.
- Before * is affected.
- Before * is affected.
- Before * is affected.
- Before * is affected.
- Before * is affected.
- Before V2.15.1.1 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.