PT-2026-20432 · Grandstream · Gxp1630+5
Sfewer-R7
·
Published
2026-02-18
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Updated
2026-04-15
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CVE-2026-2329
CVSS v2.0
10
Critical
| AV:N/AC:L/Au:N/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions:
Grandstream GXP1610, GXP1615, GXP1620, GXP1625, GXP1628, and GXP1630 versions prior to 1.0.7.81.
Description:
A critical unauthenticated stack-based buffer overflow vulnerability exists in the HTTP API endpoint /cgi-bin/api.values.get. This vulnerability allows a remote attacker to achieve unauthenticated remote code execution (RCE) with root privileges on a target device. Exploitation can lead to credential theft, call interception, and the ability to reconfigure the device for malicious purposes, such as redirecting calls through a rogue SIP proxy. The vulnerability affects Grandstream GXP1600 series VoIP phones.
Recommendations:
Update the firmware to version 1.0.7.81 or later.
Exploit
Fix
RCE
Stack Overflow
Buffer Overflow
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Related Identifiers
Affected Products
Gxp1610
Gxp1615
Gxp1620
Gxp1625
Gxp1628
Gxp1630