Siemens TIA Portal Test Suite V20 Interprocess Communication deserialization

CVSS Meta Temp Score
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CTI Interest Score
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7.8$0-$5k0.64

Summaryinfo

A vulnerability categorized as critical has been discovered in Siemens SIMATIC PCS neo V4.1, SIMATIC PCS neo V5.0, SIMATIC PCS neo V6.0, SIMATIC S7-PLCSIM V17, SIMATIC STEP 7 V17, SIMATIC STEP 7 V18, SIMATIC STEP 7 V19, SIMATIC STEP 7 V20, SIMATIC WinCC V17, SIMATIC WinCC V18, SIMATIC WinCC V19, SIMATIC WinCC V20, SIMOCODE ES V17, SIMOCODE ES V18, SIMOCODE ES V19, SIMOCODE ES V20, SIMOTION SCOUT TIA V5.4, SIMOTION SCOUT TIA V5.5, SIMOTION SCOUT TIA V5.6, SIMOTION SCOUT TIA V5.7, SINAMICS Startdrive V17, SINAMICS Startdrive V18, SINAMICS Startdrive V19, SINAMICS Startdrive V20, SIRIUS Safety ES V17, SIRIUS Safety ES V18, SIRIUS Safety ES V19, SIRIUS Safety ES V20, SIRIUS Soft Starter ES V17, SIRIUS Soft Starter ES V18, SIRIUS Soft Starter ES V19, SIRIUS Soft Starter ES V20, TIA Portal Cloud V17, TIA Portal Cloud V18, TIA Portal Cloud V19, TIA Portal Cloud V20 and TIA Portal Test Suite V20. Impacted is an unknown function of the component Interprocess Communication Handler. Such manipulation leads to deserialization. This vulnerability is traded as CVE-2024-54678. An attack has to be approached locally. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Siemens SIMATIC PCS neo V4.1, SIMATIC PCS neo V5.0, SIMATIC PCS neo V6.0, SIMATIC S7-PLCSIM V17, SIMATIC STEP 7 V17, SIMATIC STEP 7 V18, SIMATIC STEP 7 V19, SIMATIC STEP 7 V20, SIMATIC WinCC V17, SIMATIC WinCC V18, SIMATIC WinCC V19, SIMATIC WinCC V20, SIMOCODE ES V17, SIMOCODE ES V18, SIMOCODE ES V19, SIMOCODE ES V20, SIMOTION SCOUT TIA V5.4, SIMOTION SCOUT TIA V5.5, SIMOTION SCOUT TIA V5.6, SIMOTION SCOUT TIA V5.7, SINAMICS Startdrive V17, SINAMICS Startdrive V18, SINAMICS Startdrive V19, SINAMICS Startdrive V20, SIRIUS Safety ES V17, SIRIUS Safety ES V18, SIRIUS Safety ES V19, SIRIUS Safety ES V20, SIRIUS Soft Starter ES V17, SIRIUS Soft Starter ES V18, SIRIUS Soft Starter ES V19, SIRIUS Soft Starter ES V20, TIA Portal Cloud V17, TIA Portal Cloud V18, TIA Portal Cloud V19, TIA Portal Cloud V20 and TIA Portal Test Suite V20. It has been rated as critical. Affected by this issue is an unknown functionality of the component Interprocess Communication Handler. The manipulation with an unknown input leads to a deserialization vulnerability. Using CWE to declare the problem leads to CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), SIMATIC PCS neo V6.0 (All versions < V6.0 SP1 Update 1), SIMATIC S7-PLCSIM V17 (All versions), SIMATIC STEP 7 V17 (All versions < V17 Update 9), SIMATIC STEP 7 V18 (All versions), SIMATIC STEP 7 V19 (All versions < V19 Update 4), SIMATIC STEP 7 V20 (All versions < V20 Update 4), SIMATIC WinCC V17 (All versions < V17 Update 9), SIMATIC WinCC V18 (All versions), SIMATIC WinCC V19 (All versions < V19 Update 4), SIMATIC WinCC V20 (All versions < V20 Update 4), SIMOCODE ES V17 (All versions), SIMOCODE ES V18 (All versions), SIMOCODE ES V19 (All versions), SIMOCODE ES V20 (All versions), SIMOTION SCOUT TIA V5.4 (All versions), SIMOTION SCOUT TIA V5.5 (All versions), SIMOTION SCOUT TIA V5.6 (All versions < V5.6 SP1 HF7), SIMOTION SCOUT TIA V5.7 (All versions), SINAMICS Startdrive V17 (All versions), SINAMICS Startdrive V18 (All versions), SINAMICS Startdrive V19 (All versions), SINAMICS Startdrive V20 (All versions), SIRIUS Safety ES V17 (TIA Portal) (All versions), SIRIUS Safety ES V18 (TIA Portal) (All versions), SIRIUS Safety ES V19 (TIA Portal) (All versions), SIRIUS Safety ES V20 (TIA Portal) (All versions), SIRIUS Soft Starter ES V17 (TIA Portal) (All versions), SIRIUS Soft Starter ES V18 (TIA Portal) (All versions), SIRIUS Soft Starter ES V19 (TIA Portal) (All versions), SIRIUS Soft Starter ES V20 (TIA Portal) (All versions), TIA Portal Cloud V17 (All versions), TIA Portal Cloud V18 (All versions), TIA Portal Cloud V19 (All versions < V5.2.1.1), TIA Portal Cloud V20 (All versions < V5.2.2.2), TIA Portal Test Suite V20 (All versions < V20 Update 4). Affected products do not properly sanitize Interprocess Communication input received through a Windows Named Pipe accessible to all local users. This could allow an authenticated local attacker to cause a type confusion and execute arbitrary code within the affected application.

The advisory is shared for download at cert-portal.siemens.com. This vulnerability is handled as CVE-2024-54678 since 12/05/2024. The exploitation is known to be easy. The attack needs to be approached locally. 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 06/09/2026).

Upgrading eliminates this vulnerability.

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Productinfo

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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: 8.0
VulDB Meta Temp Score: 7.8

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.2
CNA Vector (siemens): 🔒

CVSSv2info

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

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
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: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

12/05/2024 CVE reserved
08/12/2025 +249 days Advisory disclosed
08/12/2025 +0 days VulDB entry created
06/09/2026 +301 days VulDB entry last update

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-693808
Status: Confirmed

CVE: CVE-2024-54678 (🔒)
GCVE (CVE): GCVE-0-2024-54678
GCVE (VulDB): GCVE-100-319544

Entryinfo

Created: 08/12/2025 14:01
Updated: 06/09/2026 13:09
Changes: 08/12/2025 14:01 (75), 10/14/2025 12:21 (1), 12/09/2025 21:17 (1), 06/09/2026 13:09 (1)
Complete: 🔍
Cache ID: 216::103

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