Schneider Electric Modicon MC80 Modbus TCP Protocol integer underflow

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

A vulnerability classified as critical was found in Schneider Electric Modicon M340 CPU, Modicon M580 CPU, Legacy Modicon Quantum, Legacy Modicon Premium, Modicon Momentum MDI and Modicon MC80 (SCADA Software). This vulnerability affects some unknown functionality of the component Modbus TCP Protocol Handler. The manipulation with an unknown input leads to a integer underflow vulnerability. The CWE definition for the vulnerability is CWE-191. The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. As an impact it is known to affect availability. CVE summarizes:

A CWE-191: Integer Underflow (Wrap or Wraparound) vulnerability exists that could cause a denial of service of the controller due to memory access violations when using the Modbus TCP protocol. Affected products: Modicon M340 CPU (part numbers BMXP34*)(V3.40 and prior), Modicon M580 CPU (part numbers BMEP* and BMEH*)(V3.22 and prior), Legacy Modicon Quantum/Premium(All Versions), Modicon Momentum MDI (171CBU*)(All Versions), Modicon MC80 (BMKC80)(V1.7 and prior)

The weakness was shared 11/22/2022 as SEVD-2022-221-02. The advisory is available at se.com. This vulnerability was named CVE-2022-37301 since 08/01/2022. The technical details are unknown and an exploit is not available.

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

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

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

CNA Base Score: 7.5
CNA Vector (Schneider Electric SE): 🔍

CVSSv2info

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

Exploitinginfo

Class: Integer underflow
CWE: CWE-191 / CWE-189
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/01/2022 🔍
11/22/2022 +113 days 🔍
11/22/2022 +0 days 🔍
11/22/2022 +0 days 🔍

Sourcesinfo

Vendor: schneider-electric.com

Advisory: SEVD-2022-221-02
Status: Confirmed

CVE: CVE-2022-37301 (🔍)

Entryinfo

Created: 11/22/2022 15:50
Changes: 11/22/2022 15:50 (48)
Complete: 🔍

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