How severe is CVE-2026-27778?

CVE-2026-27778 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-27778 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27778?

CVE-2026-27778 affects Epower Epower.ie. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27778?

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

Does CVE-2026-27778 have an EU (EUVD) identifier?

Yes. CVE-2026-27778 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9943.

When was CVE-2026-27778 published?

CVE-2026-27778 was published on 2026-03-06 and last updated on 2026-06-17.

CVE-2026-27778

CVE-2026-27778 is a high-severity vulnerability in Epower Epower.ie with a CVSS 3.x base score of 7.5. 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-307.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9943
Weakness: CWE-307
Affected product: Epower Epower.ie
Published: 2026-03-06
Last modified: 2026-06-17

Description

The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests. This absence of rate limiting may allow an attacker to conduct denial-of-service attacks by suppressing or mis-routing legitimate charger telemetry, or conduct brute-force attacks to gain unauthorized access.

Frequently asked questions

What is CVE-2026-27778?: The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests. This absence of rate limiting may allow an attacker to conduct denial-of-service attacks by suppressing or mis-routing legitimate charger telemetry, or conduct brute-force attacks to gain unauthorized access.
How severe is CVE-2026-27778?: CVE-2026-27778 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-27778 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27778?: CVE-2026-27778 affects Epower Epower.ie. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27778?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-27778 have an EU (EUVD) identifier?: Yes. CVE-2026-27778 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9943.
When was CVE-2026-27778 published?: CVE-2026-27778 was published on 2026-03-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:epower:epower.ie:*:*:*:*:*:*:*:*

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