RCE in N/a

CVE-2025-43989

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.

Vulnerability class: Command Injection (OS Command Injection)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N.

EPSS exploit prediction

EPSS: 0.069 (93.9th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-43989: held from 0.065 to 0.069.

EPSS over last 30 days · oldest: 0.065 · newest: 0.069 · change: +0.004

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-43989?
CVE-2025-43989 is a medium-severity vulnerability in N/a, classified under OS Command Injection. CVSS score: 6.5/10. Published 2025-08-13.
How severe is CVE-2025-43989?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2025-43989 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.