Is CVE-2026-9388 actively exploited?

No active exploitation of CVE-2026-9388 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-9388 be exploited remotely?

Yes. CVE-2026-9388 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-9388?

CVE-2026-9388 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2026-9388

CWE-77Published: May 24, 2026· Updated: May 26, 2026

9.8

CVSS v3.1

EPSS:0.89%probability of exploitation in 30 daysPercentile:75.8th

Official Description

A weakness has been identified in Totolink A8000RU 7.1cu.643_b20200521. The impacted element is the function setScheduleCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Executing a manipulation of the argument mode can lead to os command injection. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks.

NVD Source

Technical Analysis

CVE-2026-9388 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.