CVE-2019-6856

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Modicon Quantum, Modicon Premium (see security notification for specific versions) which could cause a Denial of Service when writing specific physical memory blocks using Modbus TCP.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-754

Affected software

No affected versions have been published.

Timeline

Published
Jan 6, 2020
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2019

CVE-2019-68577.5A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Modicon Quantum, ModiconCVE-2019-68587.8A CWE-427:Uncontrolled Search Path Element vulnerability exists in MSX Configurator (Software Version prior to V1.0.8.1), which could cause CVE-2019-68597.5A CWE-798: Use of Hardcoded Credentials vulnerability exists in Modicon Controllers (All versions of the following CPUs and Communication MoCVE-2019-69567.1An issue was discovered in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. It is a buffer over-read in ps_mix_phase in libfaad/ps_dec.c.CVE-2019-69579.8A recently discovered security vulnerability affects all Bosch Video Management System (BVMS) versions 9.0 and below, DIVAR IP 2000, 3000, 5CVE-2019-69589.1A recently discovered security vulnerability affects all Bosch Video Management System (BVMS) versions 9.0 and below, DIVAR IP 2000, 3000, 5CVE-2019-69609.8An issue was discovered in GitLab Community and Enterprise Edition 9.x, 10.x, and 11.x before 11.5.8, 11.6.x before 11.6.6, and 11.7.x beforCVE-2019-69616.5Incorrect access control in actionHandlerUtility.php in the RDK RDKB-20181217-1 WebUI module allows a logged in user to control DDNS, QoS, RCVE-2019-69627.5A shell injection issue in cosa_wifi_apis.c in the RDK RDKB-20181217-1 CcspWifiAgent module allows attackers with login credentials to execuCVE-2019-69638.8A heap-based buffer overflow in cosa_dhcpv4_dml.c in the RDK RDKB-20181217-1 CcspPandM module may allow attackers with login credentials to CVE-2019-69648.8A heap-based buffer over-read in Service_SetParamStringValue in cosa_x_cisco_com_ddns_dml.c of the RDK RDKB-20181217-1 CcspPandM module may CVE-2019-69656.1An XSS issue was discovered in i-doit Open 1.12 via the src/tools/php/qr/qr.php url parameter.