Is CVE-2026-9388 in the CISA KEV catalog?

No. CVE-2026-9388 is not currently on the CISA Known Exploited Vulnerabilities list.

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

CVE-2026-9388 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2026-9388?

CVE-2026-9388 has an EPSS score of 2.09% (79th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2026-9388

CRITICALEPSS 79th pctl

9.8

CVSS v3

NVD

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.

CWE-77Command Injection CWE-78OS Command Injection

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.09%probability of exploitation in 30 days

79thpercentile

Elevated risk: more likely to be exploited than 79% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-26.