CVE-2026-1949 — AI Deep Analysis Summary

🚨 **Essence**: A critical stack buffer overflow in the Web service of Delta AS320T PLC.…

🛡️ **Root Cause**: **CWE-131** (Incorrect Calculation of Buffer Size). <br>🔍 **Flaw**: The GET/PUT request processing logic fails to properly validate or calculate the required stack buffer size, allowing overflow.

🏭 **Affected Product**: Delta Electronics **AS320T** (High-performance PLC for industrial automation). <br>🌐 **Vendor**: DeltaWW (Delta Electronics).

💻 **Attacker Capabilities**: <br>1. **Full Control**: Execute arbitrary code on the device. <br>2. **Data Theft**: Exfiltrate sensitive industrial data (Confidentiality). <br>3.…

🔓 **Exploitation Threshold**: **LOW**. <br>📝 **Details**: CVSS Vector `AV:N/AC:L/PR:N/UI:N` indicates it is **Network** accessible, **Low** complexity, requires **No Privileges** (No Auth), and **No User Interaction**.…

📦 **Public Exploit**: **No**. <br>📄 **Status**: The `pocs` field is empty. No public Proof-of-Concept (PoC) or wild exploitation code is currently available, though the vulnerability is well-documented.

🔍 **Self-Check Method**: <br>1. Scan for open Web services on AS320T devices. <br>2. Send crafted GET/PUT requests with oversized payloads to trigger the buffer overflow. <br>3.…

🩹 **Official Fix**: **Yes**. <br>📜 **Reference**: Delta issued advisory **PCSA-2026-00006**. Check the official Delta file center for patches addressing CVE-2026-1949, 1950, 1951, and 1952.

🚧 **Workaround (If No Patch)**: <br>1. **Network Segmentation**: Isolate AS320T from untrusted networks. <br>2. **Firewall Rules**: Block direct external access to the PLC's Web service ports. <br>3.…

⚠️ **Urgency**: **CRITICAL**. <br>🔥 **Priority**: Immediate action required. With a High CVSS score and no auth requirement, this is a prime target for industrial cyberattacks.…