CVE-2026-27778

HIGH 7.5

ePower epower.ie Improper Restriction of Excessive Authentication Attempts

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-307
Vendor	epower
Product	epower.ie
Published	Mar 5, 2026
Last Updated	Mar 9, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

ePower / epower.ie

All versions

References

NVD ↗ CVE.org ↗ EPSS Data ↗

epower.ie: https://epower.ie/support/ cisa.gov: https://www.cisa.gov/news-events/ics-advisories/icsa-26-062-07 github.com: https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-062-07.json

Credits

Khaled Sarieddine and Mohammad Ali Sayed reported this vulnerability to CISA.