CVE-2021-37748 - CVE House
Back to Database
Status published High CVE-2021-37748

Multiple buffer overflows in the limited configuration shell (/sbin/gs_config) on...

Vulnerability Description

Multiple buffer overflows in the limited configuration shell (/sbin/gs_config) on Grandstream HT801 devices before 1.0.29 allow remote authenticated users to execute arbitrary code as root via a crafted manage_if setting, thus bypassing the intended restrictions of this shell and taking full control of the device. There are default weak credentials that can be used to authenticate.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-37748

Credits & Attribution

No credits recorded in the NVD database.

References

More from grandstream

View All →
CVE-2021-37915
An issue was discovered on the Grandstream HT801 Analog Telephone...
High 8.8
CVE-2020-25218
Grandstream GRP261x VoIP phone running firmware version 1.0.3.6 (Base) allow...
Critical 9.8
CVE-2020-25217
Grandstream GRP261x VoIP phone running firmware version 1.0.3.6 (Base) allows...
High 7.2
CVE-2019-10663
Grandstream UCM6204 before 1.0.19.20 devices allow remote authenticated users to...
High 8.8
CVE-2019-10662
Grandstream UCM6204 before 1.0.19.20 devices allow remote authenticated users to...
High 8.8

Affected Vendor

grandstream

View all reports →

Affected Software

ht801 firmware
Vulnerable Versions:
0

Timeline

Official Publish: October 28th, 2021
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.