Grandstream vulnerabilities
Published CVEs affecting Grandstream products: 3 record(s), with severity, exploitation and fixes.
GXP1625 2Ucm6200 Firmware 1Gxp1610 Firmware 1Gxp1615 Firmware 1Gxp1620 Firmware 1Gxp1625 Firmware 1Gxp1628 Firmware 1Gxp1630 Firmware 1GXP1610 1GXP1615 1GXP1620 1GXP1628 1GXP1630 1
CVE-2026-2329
Critical · 9.8
High · 45 Public exploit CWE-121 Feb 18, 2026
Grandstream GXP1600 VoIP Phones - Unauthenticated stack buffer overflow
An unauthenticated stack-based buffer overflow vulnerability exists in the HTTP API endpoint /cgi-bin/api.values.get. A remote attacker can leverage this vulnerability to achieve unauthenticated remote code execution (RCE) with root privileges on a target device. The vulnerability affects all six device models in the series: GXP1610, GXP1615, GXP1620, GXP1625, GXP1628, and GXP1630.
CVE-2025-14186
Low · 3.5
CWE-74 Dec 7, 2025
Grandstream GXP1625 Network Status api.values.post cross site scripting
A security flaw has been discovered in Grandstream GXP1625 1.0.7.4. The impacted element is an unknown function of the file /cgi-bin/api.values.post of the component Network Status Page. Performing manipulation of the argument vpn_ip results in basic cross site scripting. Remote exploitation of the attack is possible. The exploit has been released to the public and may be exploited. The vendor was contacted early about this disclosure but did not respond in any way.
CVE-2020-5722
Critical · 9.8
KEV Urgent · 83 Public exploit CWE-89 Mar 23, 2020
Grandstream Networks UCM6200 Series SQL Injection Vulnerability
The HTTP interface of the Grandstream UCM6200 series is vulnerable to an unauthenticated remote SQL injection via crafted HTTP request. An attacker can use this vulnerability to execute shell commands as root on versions before 1.0.19.20 or inject HTML in password recovery emails in versions before 1.0.20.17.