🔐 CVE Alert

CVE-2026-93338

MEDIUM 5.3

Grandstream GWN7660ELR < 1.0.27.6 Information Disclosure via SNMP Default Community String

CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-1188
Vendor grandstream networks
Product gwn7660elr
Published Sep 18, 2026
Last Updated Sep 18, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Affected Versions

Grandstream Networks / GWN7660ELR
0 < 1.0.27.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗
firmware.grandstream.com: https://firmware.grandstream.com/BETA/Release_Note_GWN7660ELR_7665_1.0.27.6.pdf grandstream.com: https://www.grandstream.com/support/firmware vulncheck.com: https://www.vulncheck.com/advisories/grandstream-gwn7660elr-information-disclosure-via-snmp-default-community-string

Credits

Ahmed Embaby