CVE-2026-51648: n/a
Description
Incorrect access control in the getWanInfo function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain WAN information returned by the endpoint 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
This vulnerability arises from improper access control in the getWanInfo function of TOTOLINK T6 firmware 4.1.5cu.748_B20211015. An attacker can send a specially crafted POST request to the /cgi-bin/cstecgi.cgi endpoint without authentication to obtain sensitive WAN information. The CVSS 3.1 base score is 7.5, reflecting network attack vector, low attack complexity, no privileges required, no user interaction, unchanged scope, and high confidentiality impact with no integrity or availability impact. No patch or official remediation information is currently available.
Potential Impact
An unauthenticated remote attacker can obtain sensitive WAN information from the affected device, potentially exposing network configuration details. This compromises confidentiality but does not affect integrity or availability of the device or network.
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 from untrusted networks and monitor for suspicious POST requests to /cgi-bin/cstecgi.cgi. Avoid exposing the device management interface directly to the internet.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-06-08T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6a91e409acd9273b4942e7ab
Added to database: 08/28/2026, 19:39:53 UTC
Last enriched: 09/07/2026, 14:34:20 UTC
Last updated: 10/10/2026, 18:48:20 UTC
Views: 25
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