CVE-2025-40796 is an out-of-bounds read vulnerability affecting Siemens SIMATIC PCS neo (V4.1, V5.0, V6.0) and the User Management Component (UMC) (all 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 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, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.
| 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
No social media mentions found for this CVE.
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