CVE-2026-51616: n/a
Description
Incorrect access control in the getWanIeCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain LAN addressing and DHCP configuration 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
This vulnerability arises from improper access control in the getWanIeCfg function of TOTOLINK T6 firmware 4.1.5cu.748_B20211015. An attacker can exploit this flaw by sending a specially crafted POST request to the /cgi-bin/cstecgi.cgi endpoint, which results in unauthorized disclosure of LAN addressing and DHCP configuration information. The CVSS 3.1 base score is 7.5, reflecting a network attack vector with low complexity, no privileges required, and no user interaction needed. The vulnerability is classified under CWE-284 (Improper Access Control). No official patch or remediation guidance is currently available.
Potential Impact
Successful exploitation allows unauthenticated attackers to obtain sensitive network configuration details such as LAN addressing and DHCP settings. This exposure can aid attackers in further network reconnaissance and potential follow-up attacks. There is no indication of impact on system 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 device's management interfaces from untrusted networks to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-06-08T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6a91e402acd9273b4942e683
Added to database: 08/28/2026, 19:39:46 UTC
Last enriched: 09/07/2026, 14:32:27 UTC
Last updated: 10/11/2026, 06:48:17 UTC
Views: 22
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