CVE-2025-43989Public exploitNetwork attack vector

Unauthenticated OS command execution via NTP parameter

Published Aug 13, 2025 · Updated Aug 13, 2025

OS command injection in Shenzhen Tuoshi NR500-EA firmware 3.4.2731.16.43 allows remote attackers to execute arbitrary OS commands. The /goform/formJsonAjaxReq endpoint passes the ntpserver0 value for set_timesetting to a system command without validating it. A username=admin cookie bypasses normal session checks, so no valid account is required to run commands that can alter device state, expose accessible data, or interrupt service.

CVSS severity6.5
Medium
EPSS probability6.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Shenzhen Tuoshi NR500-EA firmware 3.4.2731.16.43 allows remote attackers to execute arbitrary OS commands. The /goform/formJsonAjaxReq endpoint passes the ntpserver0 value for set_timesetting to a system command without validating it. A username=admin cookie bypasses normal session checks, so no valid account is required to run commands that can alter device state, expose accessible data, or interrupt service.

The record

CVE
CVE-2025-43989
Published
Aug 13, 2025
Updated
Aug 13, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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