CVE-2019-6535

Mitsubishi Electric MELSEC-Q Series PLCs Resource Exhaustion

HIGH
7.5
CVSS Score
Published: February 5, 2019 at 07:00 PM UTC
Updated: June 17, 2026 at 02:39 AM UTC
54 products affected across 1 vendorQ03UDECPU FirmwareQ06UDPVCPU FirmwareQ13UDEHCPU Firmware

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Severity
HIGH7.5
Exploit prediction
EPSS 4%

Description

Mitsubishi Electric Q03/04/06/13/26UDVCPU: serial number 20081 and prior, Q04/06/13/26UDPVCPU: serial number 20081 and prior, and Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU: serial number 20101 and prior. A remote attacker can send specific bytes over Port 5007 that will result in an Ethernet stack crash and disruption to USB communication.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 20101
mitsubishielectric-q03udecpu (same device)
v ≤ 20081
mitsubishielectric-q03udvcpu (same device)
v ≤ 20101
mitsubishielectric-q04udehcpu (same device)
v ≤ 20081
mitsubishielectric-q04udpvcpu (same device)
v ≤ 20081
mitsubishielectric-q04udvcpu (same device)
v ≤ 20101
mitsubishielectric-q06udehcpu (same device)
v ≤ 20081
mitsubishielectric-q06udpvcpu (same device)
v ≤ 20081
mitsubishielectric-q06udvcpu (same device)
v ≤ 20101
mitsubishielectric-q100udehcpu (same device)
v ≤ 20101
mitsubishielectric-q10udehcpu (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/106771
Third Party AdvisoryUS Government Resource
Source: af854a3a-2127-422b-91ae-364da2661108
https://ics-cert.us-cert.gov/advisories/ICSA-19-029-02

CVSS

7.5HIGHicscert
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400

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