CVE-2025-28170: Grandstream Networks GXP1628 <=1.0.4.130 is vulnerable to Incorrect Access Control

Q: How do I fix CVE-2025-28170?

gxp1628 firmware: upgrade to newer than 1.0.4.130. Exact commands for each OS are on this page.

Q: Is CVE-2025-28170 being exploited?

CVE-2025-28170 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-28170 affect?

CVE-2025-28170 affects gxp1628 firmware. Severity is high (CVSS 7.6). 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.

Q: How urgent is CVE-2025-28170?

Priority 38/100. High severity; Public exploit reference

Routine

HIGH 7.6UPGRADE

CVE-2025-28170 is a high-severity flaw (CVSS 7.6) affecting gxp1628 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 74%)
CISA exploited list	No
Weakness	CWE-548
Published	2025-07-29
Last modified	2026-07-05

Publisher (CNA): MITRE · Vendor: grandstream

Last updated 2026-07-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-29 17:15 UTCPublished CVE record published
2026-07-05 01:21 UTCUpdated Record last modified

grandstream gxp1628 firmware UPGRADE

Affected: <= 1.0.4.130

Fixed in: newer than 1.0.4.130

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-28170?

gxp1628 firmware: upgrade to newer than 1.0.4.130. Exact commands for each OS are on this page.

Is CVE-2025-28170 being exploited?

CVE-2025-28170 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-28170 affect?

CVE-2025-28170 affects gxp1628 firmware. Severity is high (CVSS 7.6). 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 urgent is CVE-2025-28170?

Priority 38/100. High severity; Public exploit reference

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References

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