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Vulnerability record · CVE-2020-5760 · published 29 July 2020

CVE-2020-5760: Grandstream ht801 firmware os command injection vulnerability

Grandstream · Ht801 Firmware

Grandstream HT800 series firmware version 1.0.17.5 and below is vulnerable to an OS command injection vulnerability. Unauthenticated remote attackers can execute arbitrary commands as root by crafting a special configuration file and sending a crafted SIP message.

7.8 CVSS 3.1 High EPSS 5.5% · top 7.5% CWE-78 · OS command injection
7.8CVSS 3.1 base score, v2 9.3
5.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Grandstream HT800 series firmware version 1.0.17.5 and below is vulnerable to an OS command injection vulnerability. Unauthenticated remote attackers can execute arbitrary commands as root by crafting a special configuration file and sending a crafted SIP message.

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

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.tenable.com/security/research/tra-2020-43 ExploitThird Party Advisory
https://www.tenable.com/security/research/tra-2020-47 Third Party AdvisoryVDB Entry
https://www.tenable.com/security/research/tra-2020-43 ExploitThird Party Advisory
https://www.tenable.com/security/research/tra-2020-47 Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2021-37748Grandstream ht801 firmware out-of-bounds write vulnerabilityMultiple buffer overflows in the limited configuration shell (/sbin/gs_config) on Grandstream HT801 devices before 1.0.29 allow remote authenticated …EPSS 7.4%8.8CVE-2021-37915Grandstream ht801 firmware vulnerabilityAn issue was discovered on the Grandstream HT801 Analog Telephone Adaptor before 1.0.29.8. From the limited configuration shell, it is possible to se…EPSS 2.0%8.8CVE-2020-5763Grandstream ht801 firmware inadequate encryption strength vulnerabilityGrandstream HT800 series firmware version 1.0.17.5 and below contain a backdoor in the SSH service. An authenticated remote attacker can obtain a roo…EPSS 2.7%8.8CVE-2017-16565Grandstream ht802 firmware cross-site request forgery vulnerabilityCross-Site Request Forgery (CSRF) in /cgi-bin/login on Vonage (Grandstream) HT802 devices allows attackers to authenticate a user via the login scree…EPSS 0.49%8.0CVE-2017-16563Grandstream ht802 firmware cross-site request forgery vulnerabilityCross-Site Request Forgery (CSRF) in the Basic Settings screen on Vonage (Grandstream) HT802 devices allows attackers to modify settings, related to …EPSS 0.44%7.5CVE-2020-5761Grandstream ht801 firmware vulnerabilityGrandstream 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. Unauthent…EPSS 4.1%7.5CVE-2020-5762Grandstream ht801 firmware null pointer dereference vulnerabilityGrandstream HT800 series firmware version 1.0.17.5 and below is vulnerable to a denial of service attack against the TR-069 service. An unauthenticat…EPSS 3.4%5.4CVE-2017-16564Grandstream ht802 firmware cross-site scripting vulnerabilityStored Cross-site scripting (XSS) vulnerability in /cgi-bin/config2 on Vonage (Grandstream) HT802 devices allows remote authenticated users to inject…EPSS 0.61%

Source: NIST National Vulnerability Database (record CVE-2020-5760), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.