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The vulnerability of the microprogrammed software of Schneider Electric’s Modicon M340 programmable logic controllers lies in the insufficient checking of unusual or exceptional states. This allows a intruder to trigger a malfunction during maintenance.

🗓️ 02 Sep 2021 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec
 bdu_fstec
🔗 bdu.fstec.ru👁 8 Views

M340 PLC software is vulnerable due to unusual-state testing gaps, enabling attackers to trigger malfunctions during maintenance.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
Circl
CVE-2020-7536
11 Dec 202007:35
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CNNVD
Schneider Electric Modicon M340 Code Issue Vulnerability
10 Dec 202000:00
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CVE-2020-7536
11 Dec 202000:46
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Cvelist
CVE-2020-7536
11 Dec 202000:46
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NCSC
Vulnerabilities fixed in Schneider Electric equipment
11 Feb 202100:00
ncsc
NVD
CVE-2020-7536
11 Dec 202001:15
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OSV
CVE-2020-7536
11 Dec 202001:15
osv
Prion
Design/Logic Flaw
11 Dec 202001:15
prion
Positive Technologies
PT-2020-6373 · Schneider Electric · Modicon M340 +3
8 Oct 202000:00
ptsecurity
RedhatCVE
CVE-2020-7536
9 Jan 202609:59
redhatcve
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02 Sep 2021 00:00Current
7.2High risk
Vulners AI Score7.2
CVSS 37.5
CVSS 27.8
EPSS0.01155
8