CVE-2020-5762

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-07-29 · updated 2026-06-17
Weakness: CWE-476

Description

Grandstream HT800 series firmware version 1.0.17.5 and below is vulnerable to a denial of service attack against the TR-069 service. An unauthenticated remote attacker can stop the service due to a NULL pointer dereference in the TR-069 service. This condition is triggered due to mishandling of the HTTP Authentication field.

Affected products

Grandstream Ht801 Firmware: through 1.0.17.5
Grandstream Ht802 Firmware: through 1.0.17.5
Grandstream Ht812 Firmware: through 1.0.17.5
Grandstream Ht813 Firmware: through 1.0.17.5
Grandstream Ht814 Firmware: through 1.0.17.5
Grandstream Ht818 Firmware: through 1.0.17.5

References

https://www.tenable.com/security/research/tra-2020-43
https://www.tenable.com/security/research/tra-2020-47
https://www.tenable.com/security/research/tra-2020-43
https://www.tenable.com/security/research/tra-2020-47

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