CVE-2020-9499
Some Dahua products have buffer overflow vulnerabilities. After the successful login of the legal...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2020-9499- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-120
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2020-9499- Updated
- 2026-11-02
EUVDEUVD-2020-30305 No score
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.
- Record
EUVD-2020-30305- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3678-jj2q-4554 No score
Some Dahua products have buffer overflow vulnerabilities. After the successful login of the legal...
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.
- Record
GHSA-3678-jj2q-4554- Weakness
- CWE-120
- Updated
- 2026-11-02
Affected products
- dahuasecurity ipc-hx2xxx firmware
- dahuasecurity ipc-hx5842h firmware
- dahuasecurity ipc-hx7842h firmware
- dahuasecurity ipc-hxxx5x4x firmware
- dahuasecurity n42b1p firmware
- dahuasecurity n42b2p firmware
- dahuasecurity n42b3p firmware
- dahuasecurity n52a4p firmware
- dahuasecurity n52b2p firmware
- dahuasecurity n52b3p firmware
- dahuasecurity n52b5p firmware
- dahuasecurity n54a4p firmware
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-9499 is a high vulnerability (CVSS 7.2) in Dahuasecurity Ipc-hx2xxx Firmware, published April 9, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.50%, the 74th percentile. No source names a fixed version.