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High severity · published Feb 5, 2019
CVE-2019-6535
Mitsubishi Electric MELSEC-Q Series PLCs Resource Exhaustion
7.5
CVSS
4.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.3% · higher than 91% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
Q0
Q03/04/06/13/26UDVCPU · Mitsubishi Electric
through serial number 20081 · source: vendor
QQ
Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU · Mitsubishi Electric
through serial number 20101 · source: vendor
Q0
Q04/06/13/26UDPVCPU · Mitsubishi Electric
through serial number 20081 · source: vendor
QF
Q03udecpu Firmware · Mitsubishielectric
through 20101 · source: NVD
QF
Q03udvcpu Firmware · Mitsubishielectric
through 20081 · source: NVD
QF
Q04udehcpu Firmware · Mitsubishielectric
through 20101 · source: NVD
QF
Q04udpvcpu Firmware · Mitsubishielectric
through 20081 · source: NVD
QF
Q04udvcpu Firmware · Mitsubishielectric
through 20081 · source: NVD
QF
Q06udehcpu Firmware · Mitsubishielectric
through 20101 · source: NVD
QF
Q06udpvcpu Firmware · Mitsubishielectric
through 20081 · source: NVD
QF
Q06udvcpu Firmware · Mitsubishielectric
through 20081 · source: NVD
QF
Q100udehcpu Firmware · Mitsubishielectric
through 20101 · source: NVD
Affected product
Q0
Q03/04/06/13/26UDVCPU
Mitsubishi Electric
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-6535
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-6535
Third Party Advisory
http://www.securityfocus.com/bid/106771
www.cisa.gov
https://www.cisa.gov/news-events/ics-advisories/icsa-19-029-02
Third Party Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-19-029-02