CVE-2019-18336 is a denial-of-service vulnerability affecting various Siemens SIMATIC and SINUMERIK products, including specific S7-300 CPU families and SINUMERIK 840D sl versions. An unauthenticated attacker with network access to port 102/tcp can send specially crafted packets, causing the affected device to enter a defect mode requiring a restart for recovery. This vulnerability has a CVSSv3 score of 7.5 (High), indicating a severe impact on availability with low attack complexity and no user interaction required. There is no known public exploitation, exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.3.17CPE matchmatch criteria | cpe:2.3:o:siemens:simatic_s7-300_cpu_firmware:*:*:*:*:*:*:*:* | ||
< 3.3.17CPE matchmatch criteria | cpe:2.3:o:siemens:simatic_s7-300_cpu_312_ifm_firmware:*:*:*:*:*:*:*:* | ||
< 3.3.17CPE matchmatch criteria | cpe:2.3:o:siemens:simatic_s7-300_cpu_313_firmware:*:*:*:*:*:*:*:* | ||
< 3.3.17CPE matchmatch criteria | cpe:2.3:o:siemens:simatic_s7-300_cpu_314_firmware:*:*:*:*:*:*:*:* | ||
< 3.3.17CPE matchmatch criteria | cpe:2.3:o:siemens:simatic_s7-300_cpu_314_ifm_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.