CVE-2018-16561 is a Denial-of-Service vulnerability affecting Siemens SIMATIC S7-300 CPUs (all versions < V3.X.16). An attacker can send a specially crafted S7 communication packet to a CPU's communication interface (Ethernet, PROFIBUS, or MPI) to trigger the flaw. This vulnerability has a CVSS v3 score of 7.5 (High), indicating a network-based attack with low complexity, requiring no privileges or user interaction, and resulting in a complete loss of availability for the CPU until a manual restart. As of the advisory publication, there was no known public exploitation, and there is no readily available exploit code or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:siemens:simatic_s7-300_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:siemens:simatic_s7-300f_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:siemens:simatic_s7-300fs_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:siemens:simatic_s7-300t_firmware:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Remediation records are not available for this CVE.