n 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.
| Link | Resource |
|---|---|
| https://firmware.grandstream.com/Release_Note_GXP16xx_1.0.7.81.pdf | Product Release Notes |
| https://github.com/rapid7/metasploit-framework/pull/20983 | VDB Entry Patch |
| https://psirt.grandstream.com/ | Vendor Advisory |
| https://www.rapid7.com/blog/post/ve-cve-2026-2329-critical-unauthenticated-stack-buffer-overflow-in-grandstream-gxp1600-voip-phones-fixed | Third Party Advisory VDB Entry |
Configuration 1 (hide)
| AND |
|
Configuration 2 (hide)
| AND |
|
Configuration 3 (hide)
| AND |
|
Configuration 4 (hide)
| AND |
|
Configuration 5 (hide)
| AND |
|
Configuration 6 (hide)
| AND |
|
20 Feb 2026, 20:57
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 9.8 |
| First Time |
Grandstream gxp1628
Grandstream gxp1630 Firmware Grandstream gxp1615 Grandstream gxp1615 Firmware Grandstream gxp1625 Grandstream gxp1630 Grandstream gxp1620 Grandstream gxp1610 Grandstream gxp1628 Firmware Grandstream gxp1620 Firmware Grandstream Grandstream gxp1610 Firmware Grandstream gxp1625 Firmware |
|
| Summary |
|
|
| CPE | cpe:2.3:h:grandstream:gxp1625:-:*:*:*:*:*:*:* cpe:2.3:h:grandstream:gxp1628:-:*:*:*:*:*:*:* cpe:2.3:o:grandstream:gxp1615_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:grandstream:gxp1625_firmware:*:*:*:*:*:*:*:* cpe:2.3:h:grandstream:gxp1630:-:*:*:*:*:*:*:* cpe:2.3:o:grandstream:gxp1630_firmware:*:*:*:*:*:*:*:* cpe:2.3:h:grandstream:gxp1620:-:*:*:*:*:*:*:* cpe:2.3:o:grandstream:gxp1610_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:grandstream:gxp1628_firmware:*:*:*:*:*:*:*:* cpe:2.3:h:grandstream:gxp1610:-:*:*:*:*:*:*:* cpe:2.3:o:grandstream:gxp1620_firmware:*:*:*:*:*:*:*:* cpe:2.3:h:grandstream:gxp1615:-:*:*:*:*:*:*:* |
|
| References | () https://firmware.grandstream.com/Release_Note_GXP16xx_1.0.7.81.pdf - Product, Release Notes | |
| References | () https://github.com/rapid7/metasploit-framework/pull/20983 - VDB Entry, Patch | |
| References | () https://psirt.grandstream.com/ - Vendor Advisory | |
| References | () https://www.rapid7.com/blog/post/ve-cve-2026-2329-critical-unauthenticated-stack-buffer-overflow-in-grandstream-gxp1600-voip-phones-fixed - Third Party Advisory, VDB Entry |
18 Feb 2026, 15:18
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Published : 2026-02-18 15:18
Updated : 2026-02-20 20:57
NVD link : CVE-2026-2329
Mitre link : CVE-2026-2329
CVE.ORG link : CVE-2026-2329
JSON object : View
Stack-based Buffer Overflow