Home/CVE/Some Dahua products have buffer overflow vulnerabilities. After the successful login of the legal account, the attacker
CVE

CVE-2020-9499

Some Dahua products have buffer overflow vulnerabilities. After the successful login of the legal account, the attacker

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.

HIGH · CVSS 7.2 EPSS 0.00534
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
▤

Affected Products & Versions

19
dahuasecurity sd6al firmware< 2019-12
dahuasecurity sd5a firmware< 2019-12
dahuasecurity sd1a firmware< 2019-12
dahuasecurity ptz1a firmware< 2019-12
dahuasecurity sd50 firmware< 2019-12
dahuasecurity sd52c firmware< 2019-12
dahuasecurity ipc-hx5842h firmware< 2019-12
dahuasecurity ipc-hx7842h firmware< 2019-12
▣

Scoring & Timeline

7.2
HIGH · CVSS v3.1 · cybersecurity@dahuatech.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Apr 2020 · 02:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.dahuasecurity.com/support/cybersecurity/details/727Vendor Advisory
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