What is the CVSS score of CVE-2026-51737?

CVE-2026-51737 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:N/I:L/A:N. EPSS exploitation probability: 0.2%.

TOTOLINK T6 CVE-2026-51737

EUVD-2026-68749 MEDIUM

Improper Access Control (CWE-284)

2026-08-31 mitre

GHSA-g9vh-wp88-f3vr

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:N/I:L/A:N

vuln.today AI

5.3 MEDIUM

Network-accessible CGI with no auth (PR:N, AV:N); impact limited to log erasure with no confidentiality or availability consequence.

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

4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/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

None

Integrity

Low

Availability

None

Lifecycle Timeline

Metadata Corrected

Sep 01, 2026 - 16:40 vuln.today

tag: N A removed

Analysis Generated

Sep 01, 2026 - 15:51 vuln.today

CVSS changed

Sep 01, 2026 - 15:22 NVD

5.3 (MEDIUM)

CVE Published

Aug 31, 2026 - 00:00 cve.org

UNKNOWN (no severity yet)

DescriptionCVE.org

Incorrect access control in the clearTracerouteLog function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to erase traceroute logs via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

AnalysisAI

Unauthenticated log erasure in TOTOLINK T6 firmware 4.1.5cu.748_B20211015 exposes network defenders to forensic blind spots. The clearTracerouteLog CGI endpoint imposes no access control, allowing any network-reachable attacker to wipe traceroute history via a crafted POST to /cgi-bin/cstecgi.cgi. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Execution

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Vulnerability AssessmentAI

Exploitation	No special conditions required - the clearTracerouteLog endpoint is accessible to any host that can reach the router's web management interface over the network, with no authentication, session validation, or configuration prerequisite. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	CVSS 5.3 Medium with AV:N/AC:L/PR:N/UI:N reflects accurate attack conditions - the endpoint is network-accessible and requires no credentials, making mass exploitation trivially automatable. … 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 vendor-released patch has been identified at time of analysis for this specific function. … Detailed patch versions, workarounds, and compensating controls in full report.