CVE-2026-2329
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
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Grandstream | GXP1610 | 0 <= 1.0.7.80 | affected |
| Grandstream | GXP1615 | 0 <= 1.0.7.80 | affected |
| Grandstream | GXP1620 | 0 <= 1.0.7.80 | affected |
| Grandstream | GXP1625 | 0 <= 1.0.7.80 | affected |
| Grandstream | GXP1628 | 0 <= 1.0.7.80 | affected |
| Grandstream | GXP1630 | 0 <= 1.0.7.80 | affected |
Weaknesses
- CWE-121: CWE-121 Stack-based Buffer Overflow
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: yes
- Technical Impact: total
References
- https://www.rapid7.com/blog/post/ve-cve-2026-2329-critical-unauthenticated-stack-buffer-overflow-in-grandstream-gxp1600-voip-phones-fixed
- https://psirt.grandstream.com/
- https://firmware.grandstream.com/Release_Note_GXP16xx_1.0.7.81.pdf
- https://github.com/rapid7/metasploit-framework/pull/20983
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