What is the CVSS score of CVE-2026-51727?

CVE-2026-51727 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.2%.

TOTOLINK T6 CVE-2026-51727

EUVD-2026-68714 MEDIUM

Improper Access Control (CWE-284)

2026-08-31 mitre

GHSA-3h9p-94cx-8qfq

Authentication Bypass

5.3

CVSS 3.1 · Vendor: mitre

Severity by source

Vendor (mitre) PRIMARY

5.3 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

vuln.today AI

5.3 MEDIUM

Network-accessible unauthenticated endpoint disclosure with no authentication bypass to admin actions and no integrity or availability impact supports C:L/I:N/A:N.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (mitre).

CVSS VectorVendor: mitre

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Metadata Corrected

Sep 01, 2026 - 17:40 vuln.today

tag: N A removed

Analysis Generated

Sep 01, 2026 - 16:53 vuln.today

CVSS changed

Sep 01, 2026 - 16:22 NVD

5.3 (MEDIUM)

CVE Published

Aug 31, 2026 - 00:00 cve.org

UNKNOWN (no severity yet)

DescriptionCVE.org

Incorrect access control in the SystemSettings function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to retrieve administrative import and export endpoint information via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

AnalysisAI

Incorrect access control in the SystemSettings function of TOTOLINK T6 router firmware 4.1.5cu.748_B20211015 exposes administrative import and export endpoint information to unauthenticated remote attackers. By sending a crafted POST request to /cgi-bin/cstecgi.cgi, an attacker can enumerate configuration management endpoints without any 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

Continue with Google Continue with GitHub

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

technique details hidden

Delivery

technique details hidden

Exploit

technique details hidden

Execution

technique details hidden

Impact

technique details hidden

Access

technique details hidden

Delivery

technique details hidden

Exploit

technique details hidden

Execution

technique details hidden

Impact

technique details hidden

Vulnerability AssessmentAI

Exploitation	The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms no authentication, no special configuration, and no user interaction is required. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N, score 5.3) accurately characterizes a network-accessible, zero-friction information disclosure with no integrity or availability impact. … 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	No patched firmware version is confirmed in the available references for CVE-2026-51727. … Detailed patch versions, workarounds, and compensating controls in full report.