Siemens SCALANCE LPE9403 dcpd null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Siemens SCALANCE LPE9403. The impacted element is an unknown function of the component dcpd. Such manipulation leads to null pointer dereference. This vulnerability is uniquely identified as CVE-2025-40576. The attack can only be initiated within the local network. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Siemens SCALANCE LPE9403 (the affected version unknown). Affected by this issue is an unknown part of the component dcpd. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. CVE summarizes:

A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions). Affected devices do not properly validate incoming Profinet packets. An unauthenticated remote attacker can exploit this flaw by sending a specially crafted malicious packet, which leads to a crash of the dcpd process.

The advisory is shared for download at cert-portal.siemens.com. This vulnerability is handled as CVE-2025-40576 since 04/16/2025. The exploitation is known to be easy. The attack needs to be done within the local network. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/08/2025).

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (siemens): 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/16/2025 🔍
05/13/2025 +27 days 🔍
05/13/2025 +0 days 🔍
07/08/2025 +56 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-327438
Status: Confirmed

CVE: CVE-2025-40576 (🔍)
GCVE (CVE): GCVE-0-2025-40576
GCVE (VulDB): GCVE-100-308612

Entryinfo

Created: 05/13/2025 12:49
Updated: 07/08/2025 14:39
Changes: 05/13/2025 12:49 (74), 07/08/2025 14:39 (1)
Complete: 🔍
Cache ID: 216::103

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