CVE-2020-9499
Dahua
- Published
- 9 April 2020
- Last modified
- 17 June 2026
- CVSS
- 7.2 v3.1
- Severity
- high
- EPSS
- 1.5% (73th pct)
- CISA KEV
- Not listed
- NVD status
- Modified
- Weaknesses
- CWE-120
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Description
Some Dahua products have buffer overflow vulnerabilities. After the successful login of the legal account, the attacker sends a specific DDNS test command, which may cause the device to go down.
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 1.5% probability of exploitation activity in the next 30 days.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| Ipc-hx2xxx | Dahua | IP camera | < 2019-12, <= 2021-7, >= 2017-7 |
| Ipc-hx5842h | Dahua | IP camera | < 2019-12 |
| Ipc-hx7842h | Dahua | IP camera | < 2019-12 |
| Ipc-hxxx5x4x | Dahua | IP camera | < 2019-12 |
| N42B1P | Dahua | unknown | < 2019-12 |
| N42B2P | Dahua | unknown | < 2019-12 |
| N42B3P | Dahua | unknown | < 2019-12 |
| N52A4P | Dahua | unknown | < 2019-12 |
| N52B2P | Dahua | unknown | < 2019-12 |
| N52B3P | Dahua | unknown | < 2019-12 |
| N52B5P | Dahua | unknown | < 2019-12 |
| N54A4P | Dahua | unknown | < 2019-12 |
| N54B2P | Dahua | unknown | < 2019-12 |
| PTZ1A | Dahua | IP camera | < 2019-12 |
| SD1A | Dahua | unknown | < 2019-12 |
| SD50 | Dahua | unknown | < 2.812.0000007.0.r.210706, < 2019-12, <= 2021-7, >= 2017-7 |
| SD52C | Dahua | unknown | < 2.812.0000007.0.r.210706, < 2019-12, <= 2021-7, >= 2017-7 |
| SD5A | Dahua | unknown | < 2019-12 |
| SD6AL | Dahua | unknown | < 2.812.0000007.0.r.210706, < 2019-12, <= 2021-7, >= 2017-7 |
References
Vendor advisory and patch
- https://www.dahuasecurity.com/support/cybersecurity/details/727
- https://www.dahuasecurity.com/support/cybersecurity/details/727
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.