How severe is CVE-2026-26366?

CVE-2026-26366 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-26366 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-26366?

CVE-2026-26366 primarily affects Jung-group Enet Smart Home. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-26366?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-26366 have an EU (EUVD) identifier?

Yes. CVE-2026-26366 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6144.

When was CVE-2026-26366 published?

CVE-2026-26366 was published on 2026-02-15 and last updated on 2026-06-17.

CVE-2026-26366

CVE-2026-26366 is a critical-severity vulnerability in Jung-group Enet Smart Home with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1392.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-6144
Weakness: CWE-1392
Affected product: Jung-group Enet Smart Home
Published: 2026-02-15
Last modified: 2026-06-17

Description

eNet SMART HOME server 2.2.1 and 2.3.1 ships with default credentials (user:user, admin:admin) that remain active after installation and commissioning without enforcing a mandatory password change. Unauthenticated attackers can use these default credentials to gain administrative access to sensitive smart home configuration and control functions.

Frequently asked questions

What is CVE-2026-26366?: eNet SMART HOME server 2.2.1 and 2.3.1 ships with default credentials (user:user, admin:admin) that remain active after installation and commissioning without enforcing a mandatory password change. Unauthenticated attackers can use these default credentials to gain administrative access to sensitive smart home configuration and control functions.
How severe is CVE-2026-26366?: CVE-2026-26366 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-26366 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-26366?: CVE-2026-26366 primarily affects Jung-group Enet Smart Home. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-26366?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-26366 have an EU (EUVD) identifier?: Yes. CVE-2026-26366 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6144.
When was CVE-2026-26366 published?: CVE-2026-26366 was published on 2026-02-15 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:jung-group:enet_smart_home:2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:jung-group:enet_smart_home:2.3.1:*:*:*:*:*:*:*

More vulnerabilities in Jung-group Enet Smart Home

CVE-2026-26369 — Critical (CVSS 9.8): eNet SMART HOME server 2.2.1 and 2.3.1 contains a privilege escalation vulnerability due to insufficient authorization…
CVE-2026-26368 — High (CVSS 8.8): eNet SMART HOME server 2.2.1 and 2.3.1 contains a missing authorization vulnerability in the resetUserPassword JSON-RPC…
CVE-2026-26367 — High (CVSS 8.1): eNet SMART HOME server 2.2.1 and 2.3.1 contains a missing authorization vulnerability in the deleteUserAccount JSON-RPC…

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