CVE-2019-9677
Dahua
- Published
- 18 September 2019
- Last modified
- 17 June 2026
- CVSS
- 9.8 v3.1
- Severity
- critical
- EPSS
- 1.1% (65th pct)
- CISA KEV
- Not listed
- NVD status
- Modified
- Weaknesses
- CWE-120
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
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.
Exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalogue as of 2026.09.04. That is an absence of confirmed public exploitation, not evidence that exploitation has not occurred. EPSS models a 1.1% probability of exploitation activity in the next 30 days.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| Ipc-hdbw4x2x | Dahua | IP camera | < 2019-08-18 |
| Ipc-hdw1x2x | Dahua | IP camera | < 2019-08-18 |
| Ipc-hdw2x2x | Dahua | IP camera | < 2019-08-18 |
| Ipc-hdw4x2x | Dahua | IP camera | < 2019-08-18 |
| Ipc-hdw5x2x | Dahua | IP camera | < 2019-08-18 |
| Ipc-hfw1x2x | Dahua | IP camera | < 2019-08-18 |
| Ipc-hfw2x2x | Dahua | IP camera | < 2019-08-18 |
| Ipc-hfw4x2x | Dahua | IP camera | < 2019-08-18 |
| Ipc-hfw5x2x | Dahua | IP camera | < 2019-08-18 |
References
Vendor advisory and patch
- https://www.dahuasecurity.com/support/cybersecurity/details/637
- https://www.dahuasecurity.com/support/cybersecurity/details/637
Record assembled from NVD, CISA KEV 2026.09.04 and FIRST EPSS 2026-09-04. Affected products are those NVD's CPE configuration names that fall inside this site's scope; a CVE may affect products outside it.