CVE-2026-51657: n/a
Description
Incorrect access control in the getSyslogCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain syslog-related configuration via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
CVSS v3.1
Score 9.1critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-51657 affects TOTOLINK T6 firmware version 4.1.5cu.748_B20211015. It arises from improper access control in the getSyslogCfg function, which can be exploited by unauthenticated attackers via a crafted POST request to the /cgi-bin/cstecgi.cgi endpoint. Successful exploitation allows attackers to obtain syslog-related configuration data, potentially exposing sensitive system information. The CVSS v3.1 base score is 9.1 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N), reflecting network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality and integrity.
Potential Impact
An unauthenticated attacker can access sensitive syslog configuration data, which may disclose system internals or aid further attacks. The vulnerability does not impact availability but poses a critical risk to confidentiality and integrity of the device's logging configuration.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Until a patch is available, restrict network access to the affected device and monitor for suspicious POST requests to /cgi-bin/cstecgi.cgi.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-06-08T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6a91e40aacd9273b4942e7f9
Added to database: 08/28/2026, 19:39:54 UTC
Last enriched: 09/07/2026, 14:34:44 UTC
Last updated: 10/11/2026, 06:48:17 UTC
Views: 35
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.