CVE-2022-30938

Name: CVE-2022-30938
Creator: NVD / NIST
Published: 2022-07-12T10:15:10.6+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.16%

Last modified Jun 17, 2026

CVE-2022-30938 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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 < V4.40), 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 manupulating a specific argument. EPSS estimates a 1.16% chance of exploitation in the next 30 days.

Description

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 < V4.40), 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 manupulating a specific argument. This could allow an attacker to crash the affected application leading to a denial of service condition

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.16%

63.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Siemens	En100 Ethernet Module Dnp3 Ip Firmware	All versions
Siemens	En100 Ethernet Module Iec 104 Firmware	All versions
Siemens	En100 Ethernet Module Iec 61850 Firmware	< 4.40
Siemens	En100 Ethernet Module Modbus Tcp Firmware	All versions
Siemens	En100 Ethernet Module Profinet Io Firmware	All versions

References

https://cert-portal.siemens.com/productcert/pdf/ssa-865333.pdfMitigation, Patch, Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-865333.pdfMitigation, Patch, Vendor Advisory

Timeline

Published: Jul 12, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-30938?

How severe is CVE-2022-30938?

CVE-2022-30938 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.16% probability of exploitation in the next 30 days.

How do I fix CVE-2022-30938?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-30938?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST