Buffer overflow in Siemens En100 Ethernet Module
CVE-2022-30937
A vulnerability has been identified in EN100 Ethernet module DNP3 IP variant (All versions), EN100 Ethernet module IEC 104 variant (All versions), EN100 Ethernet module IEC 61850 variant (All versions < V4.37), EN100 Ethernet module Modbus TCP variant (All versions), EN100 Ethernet module PROFINET IO variant (All versions). Affected applications contains a memory corruption vulnerability while parsing specially crafted HTTP packets to /txtrace endpoint. This could allow an attacker to crash the affected application leading to a denial of service condition.
Vulnerability class: Buffer Overflow
EPSS: 0.012 (64.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Siemens En100_ethernet_module
- Siemens En100_ethernet_module_dnp3_firmware
- Siemens En100 Ethernet Module Dnp3 Ip Variant — versions All versions
- Siemens En100_ethernet_module_iec_104_firmware
- Siemens En100 Ethernet Module Iec 104 Variant — versions All versions
- Siemens En100_ethernet_module_iec_61850_firmware
- Siemens En100 Ethernet Module Iec 61850 Variant — versions All versions < V4.37
- Siemens En100_ethernet_module_modbus_tcp_firmware
- Siemens En100 Ethernet Module Modbus Tcp Variant — versions All versions
- Siemens En100_ethernet_module_profinet_io_firmware
Weakness classification (CWE)
References
- productcert@siemens.com (Patch, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-30937?
- CVE-2022-30937 is a high-severity vulnerability in Siemens En100 Ethernet Module, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2022-06-14.
- How severe is CVE-2022-30937?
- High severity. CVSS v3 base score is 7.5 out of 10.