# Grandstream vulnerabilities

Source: https://junglewise.ai/threats/vendors/grandstream  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/vendors/grandstream.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 5 vulnerabilities in Grandstream: 0 in the last 7 days and 1 in the last 90 days, 1 of them critical and 1 exploited in the wild. The most recent, CVE-2026-93338, was published on 18 September 2026. Nothing in the last four weeks, down from 1 vulnerability in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 1
- All time: 5 (1 critical, 1 exploited in the wild)

## About Grandstream

Grandstream Networks is a manufacturer of IP voice and video communications equipment, gateways, and IP PBX systems.

## Latest Grandstream vulnerabilities

- [CVE-2026-93338: Grandstream GWN7660ELR information disclosure via default SNMP community string](https://junglewise.ai/threats/cve-2026-93338-grandstream-gwn7660elr-before-firmware-version-1-0-27-6-contains) (medium, CVSS 5.3, published 18 Sep 2026)
- [CVE-2025-28170: Grandstream GXP1628 directory listing in web interface](https://junglewise.ai/threats/cve-2025-28170-grandstream-gxp1628-directory-listing-in-web-interface) (high, CVSS 7.6, published 29 Jul 2025)
- [CVE-2025-28171: Grandstream UCM6510 user enumeration in login function](https://junglewise.ai/threats/cve-2025-28171-grandstream-ucm6510-user-enumeration-in-login-function) (medium, CVSS 6.5, published 29 Jul 2025)
- [CVE-2025-28172: Grandstream UCM6510 improper authentication restriction in CGI endpoints](https://junglewise.ai/threats/cve-2025-28172-grandstream-ucm6510-improper-authentication-restriction-in-cgi) (medium, CVSS 6.5, published 29 Jul 2025)
- [CVE-2020-5722: Grandstream Networks UCM6200 Series SQL Injection Vulnerability](https://junglewise.ai/threats/cve-2020-5722-grandstream-networks-ucm6200-series-sql-injection-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 28 Jan 2022)

## Most severe Grandstream vulnerabilities

- [CVE-2020-5722: Grandstream Networks UCM6200 Series SQL Injection Vulnerability](https://junglewise.ai/threats/cve-2020-5722-grandstream-networks-ucm6200-series-sql-injection-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 28 Jan 2022)
- [CVE-2025-28170: Grandstream GXP1628 directory listing in web interface](https://junglewise.ai/threats/cve-2025-28170-grandstream-gxp1628-directory-listing-in-web-interface) (high, CVSS 7.6, published 29 Jul 2025)
- [CVE-2025-28171: Grandstream UCM6510 user enumeration in login function](https://junglewise.ai/threats/cve-2025-28171-grandstream-ucm6510-user-enumeration-in-login-function) (medium, CVSS 6.5, published 29 Jul 2025)
- [CVE-2025-28172: Grandstream UCM6510 improper authentication restriction in CGI endpoints](https://junglewise.ai/threats/cve-2025-28172-grandstream-ucm6510-improper-authentication-restriction-in-cgi) (medium, CVSS 6.5, published 29 Jul 2025)
- [CVE-2026-93338: Grandstream GWN7660ELR information disclosure via default SNMP community string](https://junglewise.ai/threats/cve-2026-93338-grandstream-gwn7660elr-before-firmware-version-1-0-27-6-contains) (medium, CVSS 5.3, published 18 Sep 2026)

## Vulnerabilities per week

Nothing in the last four weeks, down from 1 vulnerability in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 1 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Grandstream vulnerabilities", https://junglewise.ai/threats/vendors/grandstream, 9 November 2026.