CVE-2019-6535
Mitsubishi Electric MELSEC-Q Series PLCs Resource Exhaustion
- Published
- Updated
- Reserved
- Assigned by
- icscert
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| icscertCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 4.3% · top 8.9% of all CVEs (4 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
Mitsubishi Electric · Q03/04/06/13/26UDVCPU
- affected ≤ serial number 20081
Mitsubishi Electric · Q04/06/13/26UDPVCPU
- affected ≤ serial number 20081
Mitsubishi Electric · Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU
- affected ≤ serial number 20101
What to do
Solution: Mitsubishi Electric has produced a new version of the firmware. Additional information about this vulnerability or Mitsubishi Electric's compensating control is available by contacting a local Mitsubishi Electric representative, which can be found at the following location: https://us.mitsubishielectric.com/fa/en/about-us/distributors Mitsubishi Electric strongly recommends users should operate the affected device behind a firewall.
References (3)
- 106771 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://www.cisa.gov/news-events/ics-advisories/icsa-19-029-02 (opens in a new tab)x_refsource_MISC
- https://ics-cert.us-cert.gov/advisories/ICSA-19-029-02 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2019-6535)Record last updated .