CVE-2019-6535
Mitsubishi Electric MELSEC-Q Series PLCs Resource Exhaustion
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Mitsubishi Electric MELSEC-Q Series PLCs Resource Exhaustion
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.
- Record
CVE-2019-6535- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
EUVDEUVD-2019-16094
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.
- Record
EUVD-2019-16094- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-6j5w-96r9-mm4v
Mitsubishi Electric Q03/04/06/13/26UDVCPU: serial number 20081 and prior, Q04/06/13/26UDPVCPU:...
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.
- Record
GHSA-6j5w-96r9-mm4v- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2019-6535- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-400
- Updated
- 2026-11-02
Affected products
- mitsubishi electric q03/04/06/13/26udvcpu
- mitsubishi electric q03udecpu, q04/06/10/13/20/26/50/100udehcpu
- mitsubishi electric q04/06/13/26udpvcpu
- mitsubishielectric q03udecpu firmware
- mitsubishielectric q03udvcpu firmware
- mitsubishielectric q04udehcpu firmware
- mitsubishielectric q04udpvcpu firmware
- mitsubishielectric q04udvcpu firmware
- mitsubishielectric q06udehcpu firmware
- mitsubishielectric q06udpvcpu firmware
- mitsubishielectric q06udvcpu firmware
- mitsubishielectric q100udehcpu firmware
Show 9 moreShow less
- mitsubishielectric q10udehcpu firmware
- mitsubishielectric q13udehcpu firmware
- mitsubishielectric q13udpvcpu firmware
- mitsubishielectric q13udvcpu firmware
- mitsubishielectric q20udehcpu firmware
- mitsubishielectric q26udehcpu firmware
- mitsubishielectric q26udpvcpu firmware
- mitsubishielectric q26udvcpu firmware
- mitsubishielectric q50udehcpu firmware
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-6535 is a high vulnerability (CVSS 7.5) in Mitsubishi Electric Q03/04/06/13/26udvcpu, published February 5, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.27%, the 91st percentile. No source names a fixed version.