CVE-2026-1723Network attack vectorHinoki check available

Unauthenticated command execution via unsanitized host_time

Published Jan 30, 2026 · Updated Jan 30, 2026

OS command injection in TOTOLINK X6000R through V9.4.0cu.1498_B20250826 allows remote attackers to execute arbitrary commands. The NTPSyncWithHost function directly concatenates the user-controlled host_time value into a shell command without neutralizing space-delimited payloads. Any network user who can reach the router's web interface can exploit the flaw without authentication, gaining command execution on the device.

CVSS severity9.2
Critical
EPSS probability0.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

OS command injection in TOTOLINK X6000R through V9.4.0cu.1498_B20250826 allows remote attackers to execute arbitrary commands. The NTPSyncWithHost function directly concatenates the user-controlled host_time value into a shell command without neutralizing space-delimited payloads. Any network user who can reach the router's web interface can exploit the flaw without authentication, gaining command execution on the device.

The record

CVE
CVE-2026-1723
Published
Jan 30, 2026
Updated
Jan 30, 2026
Vendor
TOTOLINK
Product
X6000R
Classifications
CWE-78, CAPEC-88, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 30, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=V9.4.0cu.1498_B20250826

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · X6000Rversion=0 <=V9.4.0cu.1498_B20250826

Published CVSS scores

9.2Palo Alto NetworksCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:H/SI:H/SA:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC-88OS Command Injection
T1059.004Unix Shell

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo