CVE-2026-51720

Published Aug 31, 2026 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
Description
Incorrect access control in the delIpPortFilterRules function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to remove firewall filter rules via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Unauthenticated Removal of Firewall Rules via delIpPortFilterRules in TOTOLINK T6
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

Type Values Removed Values Added
Title Unauthenticated Removal of Firewall Rules via delIpPortFilterRules in TOTOLINK T6
Weaknesses CWE-284
Type Values Removed Values Added
First Time appeared Totolink
Totolink t6
Vendors & Products Totolink
Totolink t6
Type Values Removed Values Added
Description Incorrect access control in the delIpPortFilterRules function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to remove firewall filter rules via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 31, 2026, 6:58 PM
Reserved
Jun 8, 2026, 12:00 AM
Status
Deferred
Published
Aug 31, 2026, 5:17 PM
Modified
Aug 31, 2026, 8:59 PM