CVE-2020-5761

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Grandstream HT800 series firmware version 1.0.17.5 and below is vulnerable to CPU exhaustion due to an infinite loop in the TR-069 service. Unauthenticated remote attackers can trigger this case by sending a one character TCP message to the TR-069 service.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-835

Affected software

Vendor	Product	Versions
n/a	Grandstream HT800 Series	Versions 1.0.17.5 and below

References

https://www.tenable.com/security/research/tra-2020-43Exploit, Third Party Advisory
https://www.tenable.com/security/research/tra-2020-47Third Party Advisory, VDB Entry
https://www.tenable.com/security/research/tra-2020-43Exploit, Third Party Advisory
https://www.tenable.com/security/research/tra-2020-47Third Party Advisory, VDB Entry

Timeline

Published: Jul 29, 2020
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

CVE-2020-57627.5Grandstream HT800 series firmware version 1.0.17.5 and below is vulnerable to a denial of service attack against the TR-069 service. An unau CVE-2020-57638.8Grandstream HT800 series firmware version 1.0.17.5 and below contain a backdoor in the SSH service. An authenticated remote attacker can obt CVE-2020-57648.8MX Player Android App versions prior to v1.24.5, are vulnerable to a directory traversal vulnerability when user is using the MX Transfer fe CVE-2020-57655.4Nessus 8.10.0 and earlier were found to contain a Stored XSS vulnerability due to improper validation of input during scan configuration. An CVE-2020-57667.5Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in SRS Simple Hits Counter Plugin for WordPress 1.0.3 a CVE-2020-57676.5Cross-site request forgery in Icegram Email Subscribers & Newsletters Plugin for WordPress v4.4.8 allows a remote attacker to send forged em CVE-2020-57684.9Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in Icegram Email Subscribers & Newsletters Plugin for W CVE-2020-57695.4Insufficient output sanitization in Teltonika firmware TRB2_R_00.02.02 allows a remote, authenticated attacker to conduct persistent cross-s CVE-2020-57708.8Cross-site request forgery in Teltonika firmware TRB2_R_00.02.04.01 allows a remote attacker to perform sensitive application actions by tri CVE-2020-57717.5Improper Input Validation in Teltonika firmware TRB2_R_00.02.04.01 allows a remote, authenticated attacker to gain root privileges by upload CVE-2020-57727.5Improper Input Validation in Teltonika firmware TRB2_R_00.02.04.01 allows a remote, authenticated attacker to gain root privileges by upload CVE-2020-57738.8Improper Access Control in Teltonika firmware TRB2_R_00.02.04.01 allows a low privileged user to perform unauthorized write operations.