This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis β
Q1What is this vulnerability? (Essence + Consequences)
π¨ **Essence**: Hidden backdoor in Delta AS320T PLC. π **Consequences**: Full system compromise. High CVSS (9.8) means **Total Loss** of Confidentiality, Integrity, and Availability. π₯
Q2Root Cause? (CWE/Flaw)
π‘οΈ **Root Cause**: **CWE-912** (Hidden Function). π΅οΈββοΈ An **undocumented auxiliary feature** exists. It bypasses normal security controls, acting like a secret admin door. π
Q3Who is affected? (Versions/Components)
π **Affected**: **Delta Electronics AS320T**. π¦ **Product**: Industrial PLC (Programmable Logic Controller). π **Vendor**: DeltaWW. β οΈ Specific versions not listed, assume all current units.
Q4What can hackers do? (Privileges/Data)
π» **Hacker Power**: **Full Control**. π **Data**: Read/Write all data (C:H, I:H). π« **Service**: Crash system (A:H). π **Access**: Remote (AV:N), No Auth needed (PR:N).
π« **Public Exp**: **No**. π **PoC**: Empty list in data. π **Status**: Theoretical/Unverified. No wild exploits seen yet. π΅οΈββοΈ
Q7How to self-check? (Features/Scanning)
π **Check**: Scan for **AS320T** devices. π‘ **Port**: Check standard PLC ports. π **Doc**: Review if 'auxiliary features' are enabled. π οΈ **Tool**: Use industrial asset scanners. π
Q8Is it fixed officially? (Patch/Mitigation)
π‘οΈ **Fix**: **Yes**. π₯ **Patch**: Delta released advisory **PCSA-2026-00006**. π **Ref**: PDF available on Delta file center. π Link provided in data. β
Q9What if no patch? (Workaround)
π§ **Workaround**: **Disable** the undocumented auxiliary feature. π **Network**: Isolate PLC from internet. π« **Access**: Restrict network access strictly. π