CVE-2019-9677: Dahuasecurity Ipc-HDBW4X2X Firmware

Critical severity, CVSS 9.8. EPSS: 1.1% chance of exploitation in the next 30 days.

The specific fields of CGI interface of some Dahua products are not strictly verified, an attacker can cause a buffer overflow by constructing malicious packets. Affected products include: IPC-HDW1X2X,IPC-HFW1X2X,IPC-HDW2X2X,IPC-HFW2X2X,IPC-HDW4X2X,IPC-HFW4X2X,IPC-HDBW4X2X,IPC-HDW5X2X,IPC-HFW5X2X for versions which Build time is before August 18, 2019.

Affected products

• Dahuasecurity Ipc-HDBW4X2X Firmware: before 2019-08-18 (fixed in 2019-08-18)
• Dahuasecurity Ipc-HDW1X2X Firmware: before 2019-08-18 (fixed in 2019-08-18)
• Dahuasecurity Ipc-HDW2X2X Firmware: before 2019-08-18 (fixed in 2019-08-18)
• Dahuasecurity Ipc-HDW4X2X Firmware: before 2019-08-18 (fixed in 2019-08-18)
• Dahuasecurity Ipc-HDW5X2X Firmware: before 2019-08-18 (fixed in 2019-08-18)
• Dahuasecurity Ipc-HFW1X2X Firmware: before 2019-08-18 (fixed in 2019-08-18)
• Dahuasecurity Ipc-HFW2X2X Firmware: before 2019-08-18 (fixed in 2019-08-18)
• Dahuasecurity Ipc-HFW4X2X Firmware: before 2019-08-18 (fixed in 2019-08-18)
• Dahuasecurity Ipc-HFW5X2X Firmware: before 2019-08-18 (fixed in 2019-08-18)

Published 2019-09-18. Last modified 2026-06-17.