EUVD-2026-67876
GHSA-vm5r-h6wc-6hcr
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Unauthenticated network read via crafted POST with no complexity; impact confined to DMZ configuration confidentiality - no integrity or availability effect.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
5DescriptionCVE.org
Incorrect access control in the getDmzCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain DMZ configuration information via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
AnalysisAI
Unauthenticated information disclosure in TOTOLINK T6 firmware 4.1.5cu.748_B20211015 exposes the router's DMZ configuration to any network-reachable attacker. The getDmzCfg function in /cgi-bin/cstecgi.cgi fails to enforce access controls, allowing crafted POST requests to return DMZ host mappings and related network settings without credentials. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reachability to the TOTOLINK T6 router's web management interface (HTTP POST to /cgi-bin/cstecgi.cgi). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) reflects a straightforward unauthenticated network read - no privileges, no user interaction, and no attack complexity. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Check the TOTOLINK firmware download page (https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html) for an updated firmware release addressing this access control flaw - no specific patched firmware version is confirmed in the available data, so patch availability should be verified directly with the vendor. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all TOTOLINK T6 routers in production and identify those at firmware 4.1.5cu.748_B20211015; assess whether DMZ exposure creates material risk in your network design. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today