Siemens RFID 181-EIP DHCP Response input validation

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability classified as critical has been found in Siemens RFID 181-EIP, RuggedCom WiMAX, Scalance X-200, Scalance X-200 IRT, Scalance X-204RNA, Scalance X-300, Scalance X-408, Scalance X-414 and Simatic RF192C (SCADA Software). This affects an unknown code block of the component DHCP Response Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability has been identified in RFID 181-EIP (All versions), RUGGEDCOM WiMAX (V4.4 and V4.5), SCALANCE X-200 (All versions < V5.2.3), SCALANCE X-200 IRT (All versions < V5.4.1), SCALANCE X-204RNA (All versions), SCALANCE X-300 (All versions), SCALANCE X408 (All versions), SCALANCE X414 (All versions), SIMATIC RF182C (All versions). Unprivileged remote attackers located in the same local network segment (OSI Layer 2) could gain remote code execution on the affected products by sending a specially crafted DHCP response to a client's DHCP request.

The bug was discovered 06/14/2018. The weakness was published 06/14/2018 (Website). The advisory is shared at This vulnerability is uniquely identified as CVE-2018-4833 since 01/02/2018. Access to the local network is required for this attack. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 03/27/2023).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entries are available at VDB-13397, VDB-20537 and VDB-127650.






CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
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NVD Base Score: 8.8
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Class: Input validation

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Recommended: no mitigation known
Status: 🔍


01/02/2018 🔍
06/14/2018 +162 days 🔍
06/14/2018 +0 days 🔍
06/14/2018 +0 days 🔍
06/14/2018 +0 days 🔍
06/15/2018 +1 days 🔍
03/27/2023 +1746 days 🔍



Advisory: ssa-181018
Status: Not defined

CVE: CVE-2018-4833 (🔍)
SecurityFocus: 104482 - Multiple Siemens Products CVE-2018-4833 Remote Code Execution Vulnerability

See also: 🔍


Created: 06/15/2018 07:32 AM
Updated: 03/27/2023 02:03 PM
Changes: 06/15/2018 07:32 AM (58), 02/19/2020 03:41 PM (3), 03/27/2023 02:03 PM (3)
Complete: 🔍
Cache ID: 34:FAF:40


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