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Vulnerability record · CVE-2025-28170 · published 29 July 2025

CVE-2025-28170: Grandstream gxp1628 firmware vulnerability

Grandstream · Gxp1628 Firmware

Grandstream Networks GXP1628 <=1.0.4.130 is vulnerable to Incorrect Access Control. The device is configured with directory listing enabled, allowing unauthorized access to sensitive directories and files.

7.6 CVSS 3.1 High EPSS 0.30% · top 79.8% CWE-548 · CWE-548
7.6CVSS 3.1 base score
0.30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References, 1 tagged exploit
5 Jul 2026Last modified by NVD

Description

Grandstream Networks GXP1628 <=1.0.4.130 is vulnerable to Incorrect Access Control. The device is configured with directory listing enabled, allowing unauthorized access to sensitive directories and files.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://gist.github.com/Exek1el/928ea6fd06d3b48c1c91cfdc30317d8d ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2018-17564Grandstream gxp1610 firmware vulnerabilityA Malformed Input String to /cgi-bin/delete_CA on Grandstream GXP16xx VoIP 1.0.4.128 phones allows attackers to delete configuration parameters and g…EPSS 1.6%9.8CVE-2018-17565Grandstream gxp1610 firmware os command injection vulnerabilityShell Metacharacter Injection in the SSH configuration interface on Grandstream GXP16xx VoIP 1.0.4.128 phones allows attackers to execute arbitrary s…EPSS 1.9%9.3CVE-2026-2329Grandstream gxp1610 firmware stack-based buffer overflow vulnerabilityAn unauthenticated stack-based buffer overflow vulnerability exists in the HTTP API endpoint /cgi-bin/api.values.get. A remote attacker can leverage …EPSS 41%8.8CVE-2020-5739Grandstream gxp1610 firmware code injection vulnerabilityGrandstream GXP1600 series firmware 1.0.4.152 and below is vulnerable to authenticated remote command execution when an attacker adds an OpenVPN up s…EPSS 5.3%8.8CVE-2020-5738Grandstream gxp1610 firmware link following vulnerabilityGrandstream GXP1600 series firmware 1.0.4.152 and below is vulnerable to authenticated remote command execution when an attacker uploads a specially …EPSS 5.4%5.3CVE-2018-17563Grandstream gxp1610 firmware missing encryption vulnerabilityA Malformed Input String to /cgi-bin/api-get_line_status on Grandstream GXP16xx VoIP 1.0.4.128 phones allows attackers to dump the device's configura…EPSS 0.70%

Source: NIST National Vulnerability Database (record CVE-2025-28170), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.