CVE-2026-51651: n/a
Description
Incorrect access control in the getSmartQosCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain Smart QoS configuration and rules via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
CVSS v3.1
Score 4.3medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-51651 affects TOTOLINK T6 version 4.1.5cu.748_B20211015 and arises from improper access control in the getSmartQosCfg function. An unauthenticated attacker can send a specially crafted POST request to the endpoint /cgi-bin/cstecgi.cgi to obtain Smart QoS configuration and rules. The CVSS 3.1 base score is 4.3 (medium), reflecting low impact on confidentiality and no impact on integrity or availability. There is no vendor advisory or patch information available at this time.
Potential Impact
An unauthenticated attacker can obtain Smart QoS configuration data from the affected device, which may reveal network traffic prioritization rules. This information disclosure is limited in scope and does not affect system integrity or availability. There are no known active exploits in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict network access to the device management interface to trusted users only to reduce exposure. Monitor vendor channels for updates or patches addressing this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-06-08T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6a91e409acd9273b4942e7b1
Added to database: 08/28/2026, 19:39:53 UTC
Last enriched: 09/07/2026, 14:29:58 UTC
Last updated: 10/11/2026, 06:48:17 UTC
Views: 28
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