CVE-2025-30174
CVE-2025-30174 is a high-severity vulnerability in Siemens Sinec Nms with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v4: 8.7
- EPSS exploit prediction: 1% (41st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-14391
- Weakness: CWE-125
- Affected product: Siemens Sinec Nms
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2025-30174?
- 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.
- How severe is CVE-2025-30174?
- CVE-2025-30174 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2025-30174 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-30174?
- CVE-2025-30174 primarily affects Siemens Sinec Nms. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2025-30174?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2025-30174 have an EU (EUVD) identifier?
- Yes. CVE-2025-30174 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14391.
- When was CVE-2025-30174 published?
- CVE-2025-30174 was published on 2025-05-13 and last updated on 2026-06-17.
References
Affected products (7)
- cpe:2.3:a:siemens:sinec_nms:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinema_remote_connect:-:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:totally_integrated_automation_portal:17:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:totally_integrated_automation_portal:18:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:totally_integrated_automation_portal:19:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:totally_integrated_automation_portal:20:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:user_management_component:*:*:*:*:*:*:*:*
More vulnerabilities in Siemens Sinec Nms
- CVE-2025-40736 — Critical (CVSS 9.8): A vulnerability has been identified in SINEC NMS (All versions < V4.0). The affected application exposes an endpoint…
- CVE-2021-39275 — Critical (CVSS 9.8): ap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules pass untrusted…
- CVE-2024-41940 — Critical (CVSS 9.1): A vulnerability has been identified in SINEC NMS (All versions < V3.0). The affected application does not properly…
- CVE-2021-33725 — Critical (CVSS 9.1): A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2 Update 1). The affected system allows to…
- CVE-2021-33724 — Critical (CVSS 9.1): A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2 Update 1). The affected system contains an…
- CVE-2021-40438 — Critical (CVSS 9.0): A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user.…
All CVEs affecting Siemens Sinec Nms →
Other CWE-125 (Out-of-bounds Read) vulnerabilities
- CVE-2026-24826 — Critical (CVSS 10.0): Out-of-bounds Write, Divide By Zero, NULL Pointer Dereference, Use of Uninitialized Resource, Out-of-bounds Read,…
- CVE-2024-22004 — Critical (CVSS 10.0): Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a…
- CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
- CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
- CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
- CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…