A denial of service vulnerability in the Advantech ECU-1251D allows a network-adjacent attacker to send a DNP3 signal to the Digital Output address of the device, causing the DNP3Daemon to invoke a non-existent system file and enter an indefinite restart loop. While the device remains partially accessible via its web panel or direct signals, an operator using SCADA TelWin is unable to reconnect until the device is manually restarted.
This CVE has been withdrawn by MITRE
MITRE marked CVE-2026-6889 as REJECTED on . It is no longer considered a valid vulnerability record. The original content below is preserved for historical reference only.
Reason given by MITRE
This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
CVE-2026-6889
✕ Withdrawn — historical dataMEDIUMPre-NVD 6.9
6.9CVSS
- CVSS v3
- 6.9
- EchelonGraph score
- Not yet assessedThis CVE record was withdrawn by its numbering authority, so there is no vulnerability to rate.
- EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- —Not applicable: this CVE ID was withdrawn
Published
July 31, 2026
Last Modified
July 31, 2026
Frequently asked(4)
What is CVE-2026-6889?
CVE-2026-6889 is a rejected CVE ID: its record was withdrawn on July 31, 2026 and no longer describes a vulnerability. Reason given: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
When was the CVE record for CVE-2026-6889 published?
The CVE record for CVE-2026-6889 was published on July 31, 2026. EchelonGraph's copy of the record carries a last-modified date of July 31, 2026; the record at its source may have been updated since.
What is the CVSS score of CVE-2026-6889?
CVE-2026-6889 has a CVSS base score of 6.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-6889?
There is nothing to remediate under CVE-2026-6889: it is a rejected (withdrawn) CVE ID and no longer describes a vulnerability.