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NVD Vulnerability Details :
CVE-2026-2329
Analyzed
More InfoOfficial Page
Source-cve@rapid7.com
View Known Exploited Vulnerability (KEV) details
Published At-18 Feb, 2026 | 15:18
Updated At-20 Feb, 2026 | 20:57

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.09.3CRITICAL
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 4.0
Base score: 9.3
Base severity: CRITICAL
Vector:
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Primary
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CPE Matches
grandstream
grandstream
>>gxp1610_firmware>>Versions before 1.0.7.81(exclusive)
cpe:2.3:o:grandstream:gxp1610_firmware:*:*:*:*:*:*:*:*
grandstream
grandstream
>>gxp1610>>-
cpe:2.3:h:grandstream:gxp1610:-:*:*:*:*:*:*:*
grandstream
grandstream
>>gxp1615_firmware>>Versions before 1.0.7.81(exclusive)
cpe:2.3:o:grandstream:gxp1615_firmware:*:*:*:*:*:*:*:*
grandstream
grandstream
>>gxp1615>>-
cpe:2.3:h:grandstream:gxp1615:-:*:*:*:*:*:*:*
grandstream
grandstream
>>gxp1620_firmware>>Versions before 1.0.7.81(exclusive)
cpe:2.3:o:grandstream:gxp1620_firmware:*:*:*:*:*:*:*:*
grandstream
grandstream
>>gxp1620>>-
cpe:2.3:h:grandstream:gxp1620:-:*:*:*:*:*:*:*
grandstream
grandstream
>>gxp1625_firmware>>Versions before 1.0.7.81(exclusive)
cpe:2.3:o:grandstream:gxp1625_firmware:*:*:*:*:*:*:*:*
grandstream
grandstream
>>gxp1625>>-
cpe:2.3:h:grandstream:gxp1625:-:*:*:*:*:*:*:*
grandstream
grandstream
>>gxp1628_firmware>>Versions before 1.0.7.81(exclusive)
cpe:2.3:o:grandstream:gxp1628_firmware:*:*:*:*:*:*:*:*
grandstream
grandstream
>>gxp1628>>-
cpe:2.3:h:grandstream:gxp1628:-:*:*:*:*:*:*:*
grandstream
grandstream
>>gxp1630_firmware>>Versions before 1.0.7.81(exclusive)
cpe:2.3:o:grandstream:gxp1630_firmware:*:*:*:*:*:*:*:*
grandstream
grandstream
>>gxp1630>>-
cpe:2.3:h:grandstream:gxp1630:-:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-121Secondarycve@rapid7.com
CWE ID: CWE-121
Type: Secondary
Source: cve@rapid7.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://firmware.grandstream.com/Release_Note_GXP16xx_1.0.7.81.pdfcve@rapid7.com
Product
Release Notes
https://github.com/rapid7/metasploit-framework/pull/20983cve@rapid7.com
VDB Entry
Patch
https://psirt.grandstream.com/cve@rapid7.com
Vendor Advisory
https://www.rapid7.com/blog/post/ve-cve-2026-2329-critical-unauthenticated-stack-buffer-overflow-in-grandstream-gxp1600-voip-phones-fixedcve@rapid7.com
Third Party Advisory
VDB Entry
Hyperlink: https://firmware.grandstream.com/Release_Note_GXP16xx_1.0.7.81.pdf
Source: cve@rapid7.com
Resource:
Product
Release Notes
Hyperlink: https://github.com/rapid7/metasploit-framework/pull/20983
Source: cve@rapid7.com
Resource:
VDB Entry
Patch
Hyperlink: https://psirt.grandstream.com/
Source: cve@rapid7.com
Resource:
Vendor Advisory
Hyperlink: https://www.rapid7.com/blog/post/ve-cve-2026-2329-critical-unauthenticated-stack-buffer-overflow-in-grandstream-gxp1600-voip-phones-fixed
Source: cve@rapid7.com
Resource:
Third Party Advisory
VDB Entry
Change History
0Changes found
Details not found