CVE-2026-2329
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.
- Score
- CVSS 3.1 9.8 Critical
- Status
- Analyzed - cve@rapid7.com
- Published
- 2026-02-18
- Last modified
- 2026-02-18
- Weaknesses
- CWE-121
Affected products
- Gxp1610 (Grandstream)
- Gxp1610 Firmware (Grandstream)
- Gxp1615 (Grandstream)
- Gxp1615 Firmware (Grandstream)
- Gxp1620 (Grandstream)
- Gxp1620 Firmware (Grandstream)
- Gxp1625 (Grandstream)
- Gxp1625 Firmware (Grandstream)
- Gxp1628 (Grandstream)
- Gxp1628 Firmware (Grandstream)
- Gxp1630 (Grandstream)
- Gxp1630 Firmware (Grandstream)
References
- https://firmware.grandstream.com/Release_Note_GXP16xx_1.0.7.81.pdf
- https://github.com/rapid7/metasploit-framework/pull/20983
- https://psirt.grandstream.com/
- https://www.rapid7.com/blog/post/ve-cve-2026-2329-critical-unauthenticated-stack-buffer-overflow-in-grandstream-gxp1600…
