VDB-166044 · CVE-2020-7549 · SEVD-2020-343

Schneider Electric Modicon M340/Modicon Quantum/Modicon Premium Web Server unusual condition

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.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Schneider Electric Modicon M340, Modicon Quantum and Modicon Premium and classified as problematic. Affected is an unknown function of the component Web Server. The manipulation results in unusual condition. This vulnerability is cataloged as CVE-2020-7549. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Schneider Electric Modicon M340, Modicon Quantum and Modicon Premium (SCADA Software) (the affected version is unknown). Affected is an unknown code of the component Web Server. The manipulation with an unknown input leads to a unusual condition vulnerability. CWE is classifying the issue as CWE-754. The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product. This is going to have an impact on availability.

The weakness was shared 12/11/2020 as SEVD-2020-343. The advisory is shared for download at se.com. This vulnerability is traded as CVE-2020-7549. There are neither technical details nor an exploit publicly available.

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

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: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

ADP CISA Base Score: 7.5
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: Unusual condition
CWE: CWE-754
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
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/21/2020 🔍
12/11/2020 +325 days 🔍
12/11/2020 +0 days 🔍
05/29/2026 +1995 days 🔍

Sourcesinfo

Vendor: schneider-electric.com

Advisory: SEVD-2020-343
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-7549 (🔍)
GCVE (CVE): GCVE-0-2020-7549
GCVE (VulDB): GCVE-100-166044

Entryinfo

Created: 12/11/2020 12:25
Updated: 05/29/2026 12:16
Changes: 12/11/2020 12:25 (36), 12/16/2020 08:02 (3), 12/16/2020 08:06 (18), 05/29/2026 12:16 (26)
Complete: 🔍
Cache ID: 216::103