Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-2329

Severity CVSS v4.0:
CRITICAL
Type:
CWE-121 Stack-based Buffer Overflow
Publication date:
18/02/2026
Last modified:
20/02/2026

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.

Impact

Vector 4.0
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 CVSS v4.0 Severity and Metrics:

Base Score: 9.30 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

Attack Vector (AV): Network
Attack Complexity (AC): Low
Attack Requirements (AT): None
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): High
Integrity (VI): High
Availability (VA): High
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None

Base Score 4.0
9.30
Severity 4.0
CRITICAL
Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
9.80
Severity 3.x
CRITICAL

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:grandstream:gxp1610_firmware:*:*:*:*:*:*:*:* 1.0.7.81 (excluding)
cpe:2.3:h:grandstream:gxp1610:-:*:*:*:*:*:*:*
cpe:2.3:o:grandstream:gxp1615_firmware:*:*:*:*:*:*:*:* 1.0.7.81 (excluding)
cpe:2.3:h:grandstream:gxp1615:-:*:*:*:*:*:*:*
cpe:2.3:o:grandstream:gxp1620_firmware:*:*:*:*:*:*:*:* 1.0.7.81 (excluding)
cpe:2.3:h:grandstream:gxp1620:-:*:*:*:*:*:*:*
cpe:2.3:o:grandstream:gxp1625_firmware:*:*:*:*:*:*:*:* 1.0.7.81 (excluding)
cpe:2.3:h:grandstream:gxp1625:-:*:*:*:*:*:*:*
cpe:2.3:o:grandstream:gxp1628_firmware:*:*:*:*:*:*:*:* 1.0.7.81 (excluding)
cpe:2.3:h:grandstream:gxp1628:-:*:*:*:*:*:*:*
cpe:2.3:o:grandstream:gxp1630_firmware:*:*:*:*:*:*:*:* 1.0.7.81 (excluding)
cpe:2.3:h:grandstream:gxp1630:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools