CVE-2018-16556 describes a denial-of-service vulnerability affecting numerous Siemens SIMATIC S7-400 and S7-410 CPU families. An unauthenticated attacker can send specially crafted packets to port 102/tcp via Ethernet, PROFIBUS, or MPI, causing the affected devices to enter a defect mode requiring a manual reboot. This vulnerability has a CVSS v3.1 score of 7.5 (High) due to its network attack vector, low attack complexity, and high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= v6.0CPE matchmatch criteria | cpe:2.3:o:siemens:simatic_s7-400_firmware:*:*:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:siemens:simatic_s7-400_pn\/dp_v7_firmware:*:*:*:*:*:*:*:* | ||
<= v4.5CPE matchmatch criteria | cpe:2.3:o:siemens:simatic_s7-400h_firmware:*:*:*:*:*:*:*:* | ||
< 8.2.1CPE matchmatch criteria | cpe:2.3:o:siemens:simatic_s7-410_firmware:*:*:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:siemens:simatic_s7-400h_v6_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/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.