Grandstream GWN7660ELR < 1.0.27.6 Information Disclosure via SNMP Default Community String (CVE-2026-93338) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-93338

Grandstream GWN7660ELR < 1.0.27.6 Information Disclosure via SNMP Default Community String

Answer in brief

CVE-2026-93338 records a Unknown severity vulnerability in Grandstream GWN7660ELR < 1.0.27.6 Information Disclosure via SNMP Default Community String. The current sources do not mark it as known exploited. The current feed maps Grandstream Networks/GWN7660ELR (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 18, 2026Updated Sep 18, 2026Source checked Sep 18, 2026First seen by HOL Sep 18, 2026Material review Sep 18, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Grandstream Networks/GWN7660ELR (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Grandstream Networks/GWN7660ELRgeneric	>=0 <1.0.27.6	1.0.27.6

Recommended response

Check inventory. Check lockfiles and deployed manifests for Grandstream Networks/GWN7660ELR.
Review the reported fix. Update Grandstream Networks/GWN7660ELR to 1.0.27.6 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 18, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 18, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 18, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.