SEPTEMBER 15, 2026
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Case File

CVE-2026-51724

CRITICAL · CVSS 9.8 EPSS 0.35% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-31 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

TOTOLINK T6 version 4.1.5cu.748_B20211015 is vulnerable due to incorrect access control in the delSmartQosCfg function, allowing unauthenticated attackers to delete Smart QoS rules by sending a specially crafted POST request to the /cgi-bin/cstecgi.cgi endpoint. This vulnerability could lead to unauthorized manipulation of network traffic management settings, potentially degrading network performance. Network administrators and security teams managing affected devices should prioritize this issue to mitigate potential exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-51724
Severity
CRITICAL
CVSS
9.8
EPSS
0.35%

Original NVD Description

Incorrect access control in the delSmartQosCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to remove Smart QoS rules via sending a crafted POST request to /cgi-bin/cstecgi.cgi.