Is CVE-2026-93338 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-93338 being exploited in the wild.

How severe is CVE-2026-93338?

Medium severity, with a CVSS score of 5.3, published 18 September 2026.

Which products and versions are affected?

Grandstream GWN7660ELR before 1.0.27.6.

Is there a fix for CVE-2026-93338?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-93338 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-93338?

Check whether you run Grandstream GWN7660ELR at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-93338: Grandstream GWN7660ELR information disclosure via default SNMP community string

CVE-2026-93338 · Severity: medium · CVSS 5.3 · Published 2026-09-18

The Grandstream GWN7660ELR network switch contains a flaw allowing attackers to retrieve sensitive information without authentication via the SNMP service. An attacker can query the device over the network using the default SNMP community string to extract system details including OS version, running processes, network configuration, and routing tables—information that enables detailed reconnaissance of corporate network infrastructure.

Vendors: Grandstream.

Quick answers

Is CVE-2026-93338 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-93338 being exploited in the wild.
How severe is CVE-2026-93338?: Medium severity, with a CVSS score of 5.3, published 18 September 2026.
Which products and versions are affected?: Grandstream GWN7660ELR before 1.0.27.6.
Is there a fix for CVE-2026-93338?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-93338 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-93338?: Check whether you run Grandstream GWN7660ELR at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is an information disclosure issue in the SNMP v2c service, which is configured with the default community string 'public' and accessible unauthenticated over the network. An attacker can query standard MIBs to retrieve system metadata, process details, network interface and routing information, ARP tables, and active TCP connections. The issue is patched in firmware version 1.0.27.6 and later.

Affected products

Grandstream GWN7660ELR before 1.0.27.6

Timeline

2026-09-18: disclosed

References

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