VulnSocial

CVE-2019-6856Patch(schneider-electric / 140cpu65150)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch schneider-electric 140cpu65150 systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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.

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1.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-754

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • 140cpu65150
  • 140cpu65150_firmware
  • 140cpu65160
  • 140cpu65160_firmware

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
schneider-electric
Products
140cpu65150140cpu65150_firmware140cpu65160140cpu65160_firmware140cpu65160s140cpu65160s_firmware140cpu65260140cpu65260_firmware140cpu65860140cpu65860_firmware

1 version affected across 58 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-06-02: 1Patch / Workaround · 2026-06-02: 1Technical Details · 2026-06-02: 106-02
Signal classification1 categories
Patch
1100.0%
Full discourse1 post
  • DFIR Lab@DFIR_Lab
    Patch

    🚨 HIGH Severity: CVE-2019-6856 (CVSS 7.5) Denial of Service vulnerability in Schneider Electric Modicon PLCs (M580, M340, Quantum, Premium). Exploitable via Modbus TCP with no authentication required. Patch immediately. #CVE #Vulnerability #PatchNow https://t.co/HqIuj4bsDe

    Post summary

    High‑severity DoS vulnerability in Schneider Electric Modicon PLCs via unauthenticated Modbus TCP—users are urged to patch immediately.

    0000052
    35 followersView on X
CPE platform detail58 entries

58 of 58 entries

PartVendorProductVersionTarget SWTarget HW
HWschneider-electric140cpu65150---
OSschneider-electric140cpu65150_firmware---
HWschneider-electric140cpu65160---
OSschneider-electric140cpu65160_firmware---
HWschneider-electric140cpu65160s---
OSschneider-electric140cpu65160s_firmware---
HWschneider-electric140cpu65260---
OSschneider-electric140cpu65260_firmware---
HWschneider-electric140cpu65860---
OSschneider-electric140cpu65860_firmware---
HWschneider-electric140cpu67060---
OSschneider-electric140cpu67060_firmware---
HWschneider-electric140cpu67160---
OSschneider-electric140cpu67160_firmware---
HWschneider-electric140cpu67160s---
OSschneider-electric140cpu67160s_firmware---
HWschneider-electric140cpu67260---
OSschneider-electric140cpu67260_firmware---
HWschneider-electric140cpu67261---
OSschneider-electric140cpu67261_firmware---
HWschneider-electric140cpu67861---
OSschneider-electric140cpu67861_firmware---
HWschneider-electricmodicon_m340---
OSschneider-electricmodicon_m340_firmware---
HWschneider-electricmodicon_m580---
OSschneider-electricmodicon_m580_firmware---
HWschneider-electrictsxh5724m---
OSschneider-electrictsxh5724m_firmware---
HWschneider-electrictsxh5744m---
OSschneider-electrictsxh5744m_firmware---
HWschneider-electrictsxp57104m---
OSschneider-electrictsxp57104m_firmware---
HWschneider-electrictsxp57154m---
OSschneider-electrictsxp57154m_firmware---
HWschneider-electrictsxp571634m---
OSschneider-electrictsxp571634m_firmware---
HWschneider-electrictsxp57204m_---
OSschneider-electrictsxp57204m_firmware---
HWschneider-electrictsxp57254m---
OSschneider-electrictsxp57254m_firmware---
HWschneider-electrictsxp572634m---
OSschneider-electrictsxp572634m_firmware---
HWschneider-electrictsxp57304m---
OSschneider-electrictsxp57304m_firmware---
HWschneider-electrictsxp57354m---
OSschneider-electrictsxp57354m_firmware---
HWschneider-electrictsxp573634m---
OSschneider-electrictsxp573634m_firmware---
HWschneider-electrictsxp57454m---
OSschneider-electrictsxp57454m_firmware---
HWschneider-electrictsxp574634m---
OSschneider-electrictsxp574634m_firmware---
HWschneider-electrictsxp57554m---
OSschneider-electrictsxp57554m_firmware---
HWschneider-electrictsxp575634m---
OSschneider-electrictsxp575634m_firmware---
HWschneider-electrictsxp576634m_---
OSschneider-electrictsxp576634m_firmware---

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