Medium 5.3Published Sep 18, 2026

CVE-2026-93338Grandstream GWN7660ELR < 1.0.27.6 Information Disclosure via SNMP Default Community String

Updated under an hour ago (2026-10-19 07:00 UTC)

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It affects Grandstream Networks GWN7660ELR. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Grandstream Networks GWN7660ELR

Exploited in the last 30 days

Grandstream GWN7660ELR before firmware version 1.0.27.6 contains an information disclosure vulnerability that allows unauthenticated remote attackers to obtain sensitive system information by querying the SNMP v2c service configured with the default community string 'public'. Attackers can query standard MIBs over the SNMP port to retrieve operating system and kernel version, running process names and command-line arguments, network interface configuration, routing table entries, ARP table mappings, active TCP connection details, and file system paths, enabling detailed reconnaissance of the device and adjacent network infrastructure.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-1188
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Awaiting Analysis
Record last updated: Sep 18, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Grandstream Networks GWN7660ELR grandstream_networks:gwn7660elr (from the name)	before 1.0.27.6	CNA record

References

https://firmware.grandstream.com/BETA/Release_Note_GWN7660ELR_7665_1.0.27.6.pdfrelease-notes, patch
https://www.grandstream.com/support/firmwareproduct
https://www.vulncheck.com/advisories/grandstream-gwn7660elr-information-disclosure-via-snmp-default-community-stringthird-party-advisory

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.