CVE-2020-9499

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.
Classic Buffer Overflow
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.2 HIGH
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
dahuaCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 57%
VendorProductVersion
dahuasecuritysd6al_firmware
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< 2019-12
dahuasecuritysd5a_firmware
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< 2019-12
dahuasecuritysd1a_firmware
𝑥
< 2019-12
dahuasecurityptz1a_firmware
𝑥
< 2019-12
dahuasecuritysd50_firmware
𝑥
< 2019-12
dahuasecuritysd52c_firmware
𝑥
< 2019-12
dahuasecurityipc-hx5842h_firmware
𝑥
< 2019-12
dahuasecurityipc-hx7842h_firmware
𝑥
< 2019-12
dahuasecurityipc-hx2xxx_firmware
𝑥
< 2019-12
dahuasecurityipc-hxxx5x4x_firmware
𝑥
< 2019-12
dahuasecurityn42b1p_firmware
𝑥
< 2019-12
dahuasecurityn42b2p_firmware
𝑥
< 2019-12
dahuasecurityn42b3p_firmware
𝑥
< 2019-12
dahuasecurityn52a4p_firmware
𝑥
< 2019-12
dahuasecurityn54a4p_firmware
𝑥
< 2019-12
dahuasecurityn52b2p_firmware
𝑥
< 2019-12
dahuasecurityn52b5p_firmware
𝑥
< 2019-12
dahuasecurityn52b3p_firmware
𝑥
< 2019-12
dahuasecurityn54b2p_firmware
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< 2019-12
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= Vulnerable software versions
Common Weakness Enumeration
References
https://www.dahuasecurity.com/support/cybersecurity/details/727
https://www.dahuasecurity.com/support/cybersecurity/details/727