CVE-2025-43989

Name: CVE-2025-43989
Creator: NVD / NIST
Published: 2025-08-13T19:15:28.633+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 5.76%

Last modified Jun 17, 2026

CVE-2025-43989 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. The /goform/formJsonAjaxReq POST endpoint of Shenzhen Tuoshi NR500-EA RG500UEAABxCOMSLICv3.4.2731.16.43 devices mishandles the set_timesetting action with the ntpserver0 parameter, which is used in a system command. By setting a username=admin cookie (bypassing normal session checks), an unauthenticated attacker can use that parameter to execute arbitrary OS commands.. EPSS estimates a 5.76% chance of exploitation in the next 30 days.

Description

The /goform/formJsonAjaxReq POST endpoint of Shenzhen Tuoshi NR500-EA RG500UEAABxCOMSLICv3.4.2731.16.43 devices mishandles the set_timesetting action with the ntpserver0 parameter, which is used in a system command. By setting a username=admin cookie (bypassing normal session checks), an unauthenticated attacker can use that parameter to execute arbitrary OS commands.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

5.76%

92.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

References

Timeline

Published: Aug 13, 2025
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2025-43989?

How severe is CVE-2025-43989?

CVE-2025-43989 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 5.76% probability of exploitation in the next 30 days.

How do I fix CVE-2025-43989?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-43989?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST