CVE-2026-1723 | defend.network

What is CVE-2026-1723?

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in TOTOLINK X6000R allows OS Command Injection.This issue affects X6000R: through V9.4.0cu.1498_B20250826.

CVSS9.2 NVD 4.0

SeverityCRITICAL

ExploitationNo exploitation reported

EPSS1% · P59

Triage statusNo Known Exploit

ActionPatch within 48 hours

CVSS vectorCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CWECWE-78

NVD published2026-01-30

NVD last modified2026-06-17

Timeline

2026-01-30Published to the U.S. National Vulnerability Database (NVD)
2026-03-20First covered in a defend.network daily briefing
2026-06-17NVD record last updated

Affected product

See advisory

Remediation Steps

Apply the March 2026 Patch Tuesday cumulative update to all Windows Server instances.
Prioritize domain controllers and internet-facing servers.
If immediate patching is not possible, restrict network access and enable enhanced monitoring.
Review Windows Event Logs for privilege escalation indicators (Event ID 4672, 4673).
Verify endpoint detection systems have updated signatures for this exploit chain.

References

Referenced in our briefings & reports

Vulnerability Priority Report – Week 3 of March 2026 (March 14–20)
VMware ESXi ransomware exploit; BlackSuit healthcare breach (2026-03-20)

Browse all tracked CVEs in the defend.network CVE database →

🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.