How severe is CVE-2025-28170?

CVE-2025-28170 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.

Is CVE-2025-28170 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-28170?

CVE-2025-28170 affects Grandstream Gxp1628 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-28170?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-28170 have an EU (EUVD) identifier?

Yes. CVE-2025-28170 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23024.

When was CVE-2025-28170 published?

CVE-2025-28170 was published on 2025-07-29 and last updated on 2026-07-05.

CVE-2025-28170

CVE-2025-28170 is a high-severity vulnerability in Grandstream Gxp1628 Firmware with a CVSS 3.x base score of 7.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-548.

Key facts

Severity: High (CVSS 3.x base score 7.6)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-23024
Weakness: CWE-548
Affected product: Grandstream Gxp1628 Firmware
Published: 2025-07-29
Last modified: 2026-07-05

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.

Frequently asked questions

What is CVE-2025-28170?: 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.
How severe is CVE-2025-28170?: CVE-2025-28170 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.
Is CVE-2025-28170 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-28170?: CVE-2025-28170 affects Grandstream Gxp1628 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-28170?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-28170 have an EU (EUVD) identifier?: Yes. CVE-2025-28170 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23024.
When was CVE-2025-28170 published?: CVE-2025-28170 was published on 2025-07-29 and last updated on 2026-07-05.

References

https://gist.github.com/Exek1el/928ea6fd06d3b48c1c91cfdc30317d8d

EU advisories (EUVD)

http://grandstream.com

Affected products (1)

cpe:2.3:o:grandstream:gxp1628_firmware:*:*:*:*:*:*:*:*

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