Vulnerability in Advantech ECU-1251D (CVE-2026-6889)
Summary
Vulnerability in Advantech ECU-1251D (CVE-2026-6889). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
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.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-6889 has been found in Advantech ECU-1251D.
Risk of unauthorized operations or information disclosure.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Advantech ECU-1251D CVE-2026-6889" on the vendor's site.
CVE-2026-6889 (Advantech ECU-1251D)
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (unclassified) exists in Advantech ECU-1251D.
Check the vendor advisory for the affected versions of Advantech ECU-1251D.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Advantech ECU-1251D を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- web csa.gov.sg
- web nvd.nist.gov
- web csa.gov.sg
- web github.com