CVE-2025-40798 is an out-of-bounds read vulnerability in the User Management Component (UMC) integrated into Siemens SIMATIC PCS neo V4.1, V5.0, and V6.0, as well as standalone UMC versions prior to V2.15.1.3. This flaw allows an unauthenticated remote attacker to trigger a denial of service condition. With a CVSS score of 7.5 (HIGH), it has a low attack complexity and requires no user interaction. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(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:*:*:*:*:*:*:* | ||
< 2.15.1.3CPE matchmatch criteria | cpe:2.3:a:siemens:user_management_component:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
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
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.
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.
Siemens User Management Component V2.15.1.1 Multiple Vulnerabilities
Sep 8, 2025Siemens User Management Component V2.15.1.1 Multiple Vulnerabilities
Sep 8, 2025Siemens User Management Component V2.15.1.1 Multiple Vulnerabilities
Sep 8, 2025Siemens User Management Component V2.15.1.1 Multiple Vulnerabilities
Sep 8, 2025Siemens User Management Component V2.15.1.1 Multiple Vulnerabilities
Sep 8, 2025