CVE-2019-6856

🗓️ 06 Jan 2020 22:57:02Reported by schneiderType

Improper Check for Unusual or Exceptional Conditions vulnerability in Modicon M580, Modicon M340, Modicon Quantum, Modicon Premium causing Denial of Service with Modbus TC

Reporter	Title	Published	Views	Family All 12
CNVD	Multiple Schneider Electric Product Code Issue Vulnerabilities (CNVD-2020-02578)	20 Dec 201900:00	–	cnvd
Cvelist	CVE-2019-6856	6 Jan 202022:57	–	cvelist
EUVD	EUVD-2019-16410	7 Oct 202500:30	–	euvd
ICS	Schneider Electric Modicon Controllers (Update A)	16 Jan 202000:00	–	ics
NVD	CVE-2019-6856	6 Jan 202023:15	–	nvd
OSV	CVE-2019-6856	6 Jan 202023:15	–	osv
Tenable Nessus	Schneider-electric Modicon Improper Check for Unusual or Exceptional Conditions	27 May 202000:00	–	nessus
Tenable Nessus	Schneider Electric Modicon Controllers Improper Check For Unusual or Exceptional Conditions (CVE-2019-6856)	7 Feb 202200:00	–	nessus
Prion	Design/Logic Flaw	6 Jan 202023:15	–	prion
Positive Technologies	PT-2020-11216	6 Jan 202000:00	–	ptsecurity

NVD

Node

schneider-electric modicon_m580_firmwareRange<2.80

AND

schneider-electric modicon_m580Match-

Node

schneider-electric modicon_m340_firmwareRange<3.01

AND

schneider-electric modicon_m340Match-

Node

schneider-electric tsxh5744m_firmwareRange<3.20

AND

schneider-electric tsxh5744mMatch-

Node

schneider-electric tsxh5724m_firmwareRange<3.20

AND

schneider-electric tsxh5724mMatch-

Node

schneider-electric tsxp576634m_firmwareRange<3.20

AND

schneider-electric tsxp576634m_Match-

Node

schneider-electric tsxp57554m_firmwareRange<3.20

AND

schneider-electric tsxp57554mMatch-

Node

schneider-electric tsxp575634m_firmwareRange<3.20

AND

schneider-electric tsxp575634mMatch-

Node

schneider-electric tsxp57454m_firmwareRange<3.20

AND

schneider-electric tsxp57454mMatch-

Node

schneider-electric tsxp574634m_firmwareRange<3.20

AND

schneider-electric tsxp574634mMatch-

Node

schneider-electric tsxp57354m_firmwareRange<3.20

AND

schneider-electric tsxp57354mMatch-

Node

schneider-electric tsxp573634m_firmwareRange<3.20

AND

schneider-electric tsxp573634mMatch-

Node

schneider-electric tsxp57304m_firmwareRange<3.20

AND

schneider-electric tsxp57304mMatch-

Node

schneider-electric tsxp57254m_firmwareRange<3.20

AND

schneider-electric tsxp57254mMatch-

Node

schneider-electric tsxp572634m_firmwareRange<3.20

AND

schneider-electric tsxp572634mMatch-

Node

schneider-electric tsxp57204m_firmwareRange<3.20

AND

schneider-electric tsxp57204m_Match-

Node

schneider-electric tsxp571634m_firmwareRange<3.20

AND

schneider-electric tsxp571634mMatch-

Node

schneider-electric tsxp57154m_firmwareRange<3.20

AND

schneider-electric tsxp57154mMatch-

Node

schneider-electric tsxp57104m_firmwareRange<3.20

AND

schneider-electric tsxp57104mMatch-

Node

schneider-electric 140cpu65150_firmwareRange<3.52

AND

schneider-electric 140cpu65150Match-

Node

schneider-electric 140cpu65160_firmwareRange<3.52

AND

schneider-electric 140cpu65160Match-

Node

schneider-electric 140cpu65260_firmwareRange<3.52

AND

schneider-electric 140cpu65260Match-

Node

schneider-electric 140cpu67261_firmwareRange<3.52

AND

schneider-electric 140cpu67261Match-

Node

schneider-electric 140cpu67060_firmwareRange<3.52

AND

schneider-electric 140cpu67060Match-

Node

schneider-electric 140cpu67160_firmwareRange<3.52

AND

schneider-electric 140cpu67160Match-

Node

schneider-electric 140cpu67261_firmwareRange<3.52

AND

schneider-electric 140cpu67261Match-

Node

schneider-electric 140cpu67260_firmwareRange<3.52

AND

schneider-electric 140cpu67260Match-

Node

schneider-electric 140cpu65860_firmwareRange<3.52

AND

schneider-electric 140cpu65860Match-

Node

schneider-electric 140cpu67861_firmwareRange<3.52

AND

schneider-electric 140cpu67861Match-

Node

schneider-electric 140cpu65160s_firmwareRange<3.52

AND

schneider-electric 140cpu65160sMatch-

Node

schneider-electric 140cpu67160s_firmwareRange<3.52

AND

schneider-electric 140cpu67160sMatch-

[
  {
    "product": "Modicon M580, Modicon M340, Modicon Quantum,  Modicon Premium (see security notification for specific versions)",
    "vendor": "Schneider Electric SE",
    "versions": [
      {
        "status": "affected",
        "version": "Modicon M580"
      },
      {
        "status": "affected",
        "version": "Modicon M340"
      },
      {
        "status": "affected",
        "version": "Modicon Quantum"
      },
      {
        "status": "affected",
        "version": "Modicon Premium (see security notification for specific versions)"
      }
    ]
  }
]

Source	Link
us-cert	www.us-cert.gov/ics/advisories/icsa-20-016-01
se	www.se.com/ww/en/download/document/SEVD-2019-344-01

17 Jun 2026 02:39Current

7.3High risk

Vulners AI Score7.3

CVSS 25

CVSS 3.17.5

EPSS0.0163

SSVC

CWE-754