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Public proof of conceptFix available

CVE-2026-2329

A public proof of concept exists; no exploitation attested.

  • Published2026-02-18
  • Fixed in1.0.7.81
  • WeaknessCWE-121

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-02-1815:18CVE publishedNVD

Versions per branch

NVD
Grandstream gxp1610 firmwareversion to verify
BranchAffectedFixed in
1.0< 1.0.7.811.0.7.81
Grandstream gxp1615 firmwareversion to verify
BranchAffectedFixed in
1.0< 1.0.7.811.0.7.81
Grandstream gxp1620 firmwareversion to verify
BranchAffectedFixed in
1.0< 1.0.7.811.0.7.81

3 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA6 products

As rapid7, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Grandstream GXP1610other versions: not affected
    Affected
    • ≤ 1.0.7.80no fix statedsemver
  • Grandstream GXP1615other versions: not affected
    Affected
    • ≤ 1.0.7.80no fix statedsemver
  • Grandstream GXP1620other versions: not affected
    Affected
    • ≤ 1.0.7.80no fix statedsemver
  • Grandstream GXP1625other versions: not affected
    Affected
    • ≤ 1.0.7.80no fix statedsemver
  • Grandstream GXP1628other versions: not affected
    Affected
    • ≤ 1.0.7.80no fix statedsemver
  • Grandstream GXP1630other versions: not affected
    Affected
    • ≤ 1.0.7.80no fix statedsemver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-02-18

Fix

  1. Update Grandstream gxp1610 firmware to 1.0.7.81

Advisories and patches

Detection

read 2026-11-01 01:02 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
1 moduleexploit/linux/http/grandstream_gxp1600_unauth_rcerank: greatModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0 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
Published
2026-02-18
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-r4m3-cm43-fxrj

Frequently asked questions

What is 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.

Is CVE-2026-2329 actively exploited?

A proof-of-concept exploit exists for CVE-2026-2329, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-2329?

CVE-2026-2329 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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