CVE-2021-45117 describes a NULL pointer dereference vulnerability in the OPC autogenerated ANSI C stack stubs within NodeSets, affecting various Siemens and OPC Foundation products including SIMATIC NET PC and SITOP Manager. This medium-severity vulnerability (CVSS 6.5) can be triggered remotely with low attack complexity, potentially leading to a denial of service (high availability impact) without requiring user interaction or privileges. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.05.01CPE matchmatch criteria | cpe:2.3:a:opcfoundation:ua-nodeset:*:*:*:*:*:*:*:* | ||
14CPE matchmatch criteria | cpe:2.3:a:siemens:simatic_net_pc:14:-:*:*:*:*:*:* | ||
15CPE matchmatch criteria | cpe:2.3:a:siemens:simatic_net_pc:15:-:*:*:*:*:*:* | ||
16CPE matchmatch criteria | cpe:2.3:a:siemens:simatic_net_pc:16:-:*:*:*:*:*:* | ||
17CPE matchmatch criteria | cpe:2.3:a:siemens:simatic_net_pc:17:-:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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, 0.0 Mastodon, and 0.1 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.
Remediation records are not available for this CVE.