CVE-2022-30937 is a memory corruption vulnerability affecting various Siemens EN100 Ethernet module variants (DNP3, IEC 104, IEC 61850, Modbus TCP, PROFINET IO). An unauthenticated attacker can exploit this by sending specially crafted HTTP packets to the /txtrace endpoint, leading to a denial-of-service condition. This vulnerability has a CVSS score of 7.5 (High), indicating it can be exploited remotely with low complexity and no user interaction, resulting in high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog. However, it has garnered some community discussion and media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:siemens:en100_ethernet_module_dnp3_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:siemens:en100_ethernet_module_iec_104_firmware:-:*:*:*:*:*:*:* | ||
< 4.37CPE matchmatch criteria | cpe:2.3:o:siemens:en100_ethernet_module_iec_61850_firmware:*:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:siemens:en100_ethernet_module_modbus_tcp_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:siemens:en100_ethernet_module_profinet_io_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.
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.