Incorrect access control in the getDeviceInfo function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain device… (CVE-2026-51613)
Description
An incorrect access control vulnerability exists in the getDeviceInfo function of TOTOLINK T6 firmware version 4.1.5cu.748_B20211015. This flaw allows unauthenticated attackers to retrieve device identification details by sending a crafted POST request to the /cgi-bin/cstecgi.cgi endpoint. The vulnerability has a CVSS score of 4.3, indicating a medium severity level. There is no information on available patches or fixes at this time.
CVSS v3.1
Score 4.3medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-51613 involves improper access control in the getDeviceInfo function of TOTOLINK T6 firmware 4.1.5cu.748_B20211015. An attacker without authentication can exploit this by sending a specially crafted POST request to the /cgi-bin/cstecgi.cgi CGI endpoint to obtain device identification details. The CVSS vector indicates the attack requires adjacent network access (AV:A), has low attack complexity (AC:L), requires no privileges (PR:N), no user interaction (UI:N), and impacts confidentiality only (C:L) without affecting integrity or availability.
Potential Impact
An unauthenticated attacker can obtain device identification details, potentially exposing sensitive information about the device. This could aid in further reconnaissance or targeted attacks but does not directly impact device integrity or availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the device management interface to trusted networks and monitor for suspicious POST requests to /cgi-bin/cstecgi.cgi.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-8vpv-jfwr-r54j
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-51613"]
Threat ID: 6a92f7fbacd9273b49e8adcb
Added to database: 08/29/2026, 15:17:15 UTC
Last enriched: 09/09/2026, 19:22:57 UTC
Last updated: 10/12/2026, 06:48:17 UTC
Views: 21
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