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CVE-2025-30176

20
FAUCET Score

CVE-2025-30176 is an out-of-bounds read buffer overflow vulnerability affecting multiple Siemens products, including SIMATIC PCS neo, SINEC NMS, SINEMA Remote Connect, TIA Portal, and User Management Component (UMC). This flaw, residing in the integrated UMC component, allows an unauthenticated remote attacker to trigger a denial of service condition. With a CVSS score of 7.5 (High), it presents a significant risk due to its network-based attack vector and low attack complexity, requiring no user interaction or privileges. Currently, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
4.1CPE matchmatch criteria
cpe:2.3:a:siemens:simatic_pcs_neo:4.1:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:siemens:simatic_pcs_neo:5.0:*:*:*:*:*:*:*
< 4.0CPE matchmatch criteria
cpe:2.3:a:siemens:sinec_nms:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:siemens:sinema_remote_connect:-:*:*:*:*:*:*:*
17CPE matchmatch criteria
cpe:2.3:a:siemens:totally_integrated_automation_portal:17:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

8.7HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.53%
Probability of exploitation in next 30 days
EPSS Percentile
41.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0053 is in the 19th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (4)

azurevendor investigatingvia llm_extracted
Fixed in: 2.15
dotnetvendor investigatingvia llm_extracted
langgeniusvendor investigatingvia llm_extracted
phoenix_contactvendor investigatingvia llm_extracted

Vendor Advisories (4)

langgeniusllm-langgenius-ae67e8784e397911HIGH

Siemens User Management Component V2.15 Multiple Vulnerabilities

May 20, 2025
dotnetllm-dotnet-ac00a43950acf285HIGH

Siemens User Management Component V2.15 Multiple Vulnerabilities

May 20, 2025
azurellm-azure-0fc7b455a561c207HIGH

Siemens User Management Component V2.15 Multiple Vulnerabilities

May 20, 2025
phoenix_contactllm-phoenix_contact-1c39060f6b585724HIGH

Siemens User Management Component V2.15 Multiple Vulnerabilities

May 20, 2025

References

cert-portal.siemens.com / productcert/html/ssa-614723.html
Vendor Advisory