{"id":86344,"date":"2026-01-22T01:02:11","date_gmt":"2026-01-22T01:02:11","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-30176-buffer-overflow-vulnerability-in-integrated-umc-component-leading-to-denial-of-service-condition","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-30176-buffer-overflow-vulnerability-in-integrated-umc-component-leading-to-denial-of-service-condition\/","title":{"rendered":"CVE-2025-30176: Buffer Overflow Vulnerability in Integrated UMC Component Leading to Denial of Service Condition<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The cybersecurity community has identified a critical vulnerability, CVE-2025-30176, that affects various versions of Siemens’ SIMATIC PCS neo, SINEC NMS, SINEMA Remote Connect, and Totally Integrated Automation Portal (TIA Portal), including the User Management Component (UMC). This vulnerability can potentially lead to system compromise or data leakage, making it a severe threat that requires immediate attention.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-30176
\nSeverity: Critical, CVSS v3 Score of 7.5
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Denial of Service, potential system compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

SIMATIC PCS neo | V4.1, V5.0
\nSINEC NMS | All versions
\nSINEMA Remote Connect | All versions
\nTotally Integrated Automation Portal (TIA Portal) | V17, V18, V19, V20
\nUser Management Component (UMC) | All versions < V2.15.1.1\n\nHow the Exploit Works<\/strong><\/p>\n

This critical vulnerability arises from an out-of-bounds read buffer overflow within the integrated UMC component of the affected products. An unauthenticated attacker can remotely exploit this vulnerability by sending specially crafted data to the targeted system. The overflow can cause the system to crash, resulting in a denial of service. In some instances, the exploit may also allow the attacker to execute arbitrary code or access sensitive information.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

The following is a conceptual example of how the vulnerability might be exploited using a malicious payload.<\/p>\n

POST \/umc\/vulnerable_endpoint HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ \"malicious_payload\": \"buffer_overflow_string\" }<\/code><\/pre>\n
In this example, the “buffer_overflow_string” would be a crafted string of data designed to overflow the buffer and exploit the vulnerability.
\nIt is advisable to apply the vendor-released patches immediately or use WAF\/IDS solutions as temporary mitigation to prevent potential exploitation of this vulnerability.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The cybersecurity community has identified a critical vulnerability, CVE-2025-30176, that affects various versions of Siemens’ SIMATIC PCS neo, SINEC NMS, SINEMA Remote Connect, and Totally Integrated Automation Portal (TIA Portal), including the User Management Component (UMC). This vulnerability can potentially lead to system compromise or data leakage, making it a severe threat that requires […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-86344","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t