# CVE-2026-2329

## Summary

- **CVE ID:** CVE-2026-2329
- **Severity:** CRITICAL
- **CVSS Score:** 9.3 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-121
- **Published:** Feb 18, 2026
- **Last Modified:** Mar 12, 2026

## Description

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.

## Affected Products

- Grandstream — GXP1610 (0)
- Grandstream — GXP1615 (0)
- Grandstream — GXP1620 (0)
- Grandstream — GXP1625 (0)
- Grandstream — GXP1628 (0)
- Grandstream — GXP1630 (0)

## References

- [CNA](https://www.rapid7.com/blog/post/ve-cve-2026-2329-critical-unauthenticated-stack-buffer-overflow-in-grandstream-gxp1600-voip-phones-fixed)
- [CNA](https://psirt.grandstream.com/)
- [CNA](https://firmware.grandstream.com/Release_Note_GXP16xx_1.0.7.81.pdf)
- [CNA](https://github.com/rapid7/metasploit-framework/pull/20983)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 40.01%
- **EPSS Percentile:** 98.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._