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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:grandstream:gxp1610_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:grandstream:gxp1610:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:grandstream:gxp1615_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:grandstream:gxp1615:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:grandstream:gxp1620_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:grandstream:gxp1620:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:o:grandstream:gxp1625_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:grandstream:gxp1625:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND

cpe:2.3:o:grandstream:gxp1628_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:grandstream:gxp1628:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND

cpe:2.3:o:grandstream:gxp1630_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:grandstream:gxp1630:-:*:*:*:*:*:*:*

History

No history.

Information

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

Products Affected

grandstream

gxp1628_firmware
gxp1615
gxp1625_firmware
gxp1610
gxp1615_firmware
gxp1625
gxp1610_firmware
gxp1620
gxp1628
gxp1620_firmware
gxp1630
gxp1630_firmware

CWE

CWE-121

Stack-based Buffer Overflow

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