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CVE-2026-93338

Grandstream GWN7660ELR < 1.0.27.6 Information Disclosure via SNMP Default Community String

CVSS 4.0 6.9 MEDIUMCVSS 3.1 5.3 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-93338

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-93338

Published

GWN7660ELR

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "defaultStatus": "unaffected",
                    "vendor": "Grandstream Networks",
                    "product": "GWN7660ELR",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "versionType": "custom",
                            "lessThan": "1.0.27.6"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON