CVE-2026-2329An unauthenticated stack-based buffer overflow vulnerability exists in the HTTP API endpoint /cgi-bin/api.values.get.
Updated under an hour ago ()
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It affects grandstream gxp1610_firmware and 5 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 9.8 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-121
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
grandstream gxp1610_firmware grandstream:gxp1610_firmware | before 1.0.7.81 | NVD |
grandstream gxp1615_firmware grandstream:gxp1615_firmware | before 1.0.7.81 | NVD |
grandstream gxp1620_firmware grandstream:gxp1620_firmware | before 1.0.7.81 | NVD |
grandstream gxp1625_firmware grandstream:gxp1625_firmware | before 1.0.7.81 | NVD |
grandstream gxp1628_firmware grandstream:gxp1628_firmware | before 1.0.7.81 | NVD |
grandstream gxp1630_firmware grandstream:gxp1630_firmware | before 1.0.7.81 | NVD |
References
- https://firmware.grandstream.com/Release_Note_GXP16xx_1.0.7.81.pdfproduct, release-notes
- https://github.com/rapid7/metasploit-framework/pull/20983patch, vdb-entry
- 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-fixedthird-party-advisory, vdb-entry
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.