CVE-2026-51671: n/a
Description
Incorrect access control in the getCloudDownloadStatus function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain cloud firmware download state information via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-51671 is an access control vulnerability in TOTOLINK T6 firmware 4.1.5cu.748_B20211015. The getCloudDownloadStatus function does not properly restrict access, enabling unauthenticated remote attackers to obtain sensitive cloud firmware download status information via a specially crafted POST request to the /cgi-bin/cstecgi.cgi endpoint. This vulnerability is categorized under CWE-284 (Improper Access Control) and has a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N). No official patch or remediation guidance is currently provided, and no known exploits are reported in the wild.
Potential Impact
The vulnerability allows unauthenticated attackers to access sensitive cloud firmware download state information, which could potentially aid in further attacks or reconnaissance. The confidentiality of this information is fully compromised (high impact), but there is no impact on integrity or availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the affected endpoint where possible and monitor for suspicious POST requests targeting /cgi-bin/cstecgi.cgi. Avoid exposing the device management interface to untrusted networks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-06-08T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6a95872cacd9273b492acd0d
Added to database: 08/31/2026, 13:52:44 UTC
Last enriched: 09/07/2026, 15:05:08 UTC
Last updated: 10/13/2026, 18:48:21 UTC
Views: 65
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