CVE-2018-11451 describes a denial-of-service vulnerability affecting various Siemens SIPROTEC 5 relays and EN100 Ethernet modules with specific firmware variants. Specially crafted packets sent to TCP port 102 can render the network functionality of these devices unavailable, requiring a manual restart for recovery. Rated with a CVSS score of 7.5 (High), this vulnerability is remotely exploitable with low attack complexity, requiring network access and activated IEC 61850-MMS communication. The primary impact is a denial-of-service, compromising system availability without affecting confidentiality or integrity. There is no known public exploitation of this vulnerability, nor is there readily available exploit code in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage are minimal, suggesting limited current attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:siemens:dnp3_tcp_firmware:-:*:*:*:*:*:*:* | ||
< 4.33CPE matchmatch criteria | cpe:2.3:o:siemens:iec_61850_firmware:*:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:siemens:iec104_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:siemens:modbus_tcp_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:siemens:profinet_io_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.
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.