VDB-165093 · CVE-2020-7564 · SEVD-2020-315-01

Schneider Electric Modicon M340 Web Server buffer overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Schneider Electric Modicon M340, Modicon Quantum and Modicon Premium Legacy. It has been classified as critical. Impacted is an unknown function of the component Web Server. Performing a manipulation results in buffer overflow. This vulnerability was named CVE-2020-7564. There is no available exploit.

Detailsinfo

A vulnerability was found in Schneider Electric Modicon M340, Modicon Quantum and Modicon Premium Legacy (SCADA Software) (unknown version). It has been classified as critical. This affects an unknown code block of the component Web Server. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 11/18/2020 as SEVD-2020-315-01. The advisory is shared at se.com. This vulnerability is uniquely identified as CVE-2020-7564. Neither technical details nor an exploit are publicly available.

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

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Productinfo

Type

SCADA Software

Vendor

Schneider Electric

Name

License

commercial

Website

Vendor: https://www.schneider-electric.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.9

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

ADP CISA Base Score: 6.3
ADP CISA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/21/2020 🔍
11/18/2020 +302 days 🔍
11/18/2020 +0 days 🔍
05/30/2026 +2019 days 🔍

Sourcesinfo

Vendor: schneider-electric.com

Advisory: SEVD-2020-315-01
Status: Confirmed

CVE: CVE-2020-7564 (🔍)
GCVE (CVE): GCVE-0-2020-7564
GCVE (VulDB): GCVE-100-165093

Entryinfo

Created: 11/18/2020 18:13
Updated: 05/30/2026 16:58
Changes: 11/18/2020 18:13 (37), 12/08/2020 17:12 (2), 12/08/2020 17:19 (18), 05/30/2026 16:58 (26)
Complete: 🔍
Cache ID: 216::103