CVE-2026-93338 Grandstream GWN7660ELR < 1.0.27.6 Information Disclosure via SNMP Default Community String
Unauthenticated attackers can retrieve sensitive system and network configuration details from Grandstream access points via SNMP using the default community string.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-93338?
CVE-2026-93338 is a medium-severity vulnerability in Grandstream Networks GWN7660ELR, published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-1188
Which versions are affected by CVE-2026-93338?
How do I fix CVE-2026-93338?
No fix has been published for CVE-2026-93338 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-93338 being exploited?
There is no known exploitation of CVE-2026-93338 in the wild and no public exploit code.
Sources
Also known as GHSA-w3m6-5c22-j92h.