CVE-2026-66340
Received Received - Intake

Mira Cloud Authentication Brute Force Vulnerability

Vulnerability report for CVE-2026-66340, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-11

Last updated on: 2026-08-12

Assigner: ICS-CERT

Description

The Mira cloud authentication endpoints do not enforce per-account rate limiting, per-IP throttling, or account lockout after repeated failed login attempts. An attacker can use brute-force methods to obtain gain access to user accounts.

CVSS Scores

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Meta Information

Published
2026-08-11
Last Modified
2026-08-12
Generated
2026-09-01
AI Q&A
2026-08-12
EPSS Evaluated
2026-08-30
NVD
EUVD

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-307 The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame.

Attack-Flow Graph

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Executive Summary

This vulnerability exists in the Mira cloud authentication system. The endpoints fail to enforce rate limiting per account, throttling per IP, or account lockout after multiple failed login attempts. This allows attackers to use brute-force techniques to gain unauthorized access to user accounts.

Detection Guidance

Detecting this vulnerability involves monitoring for unusual login attempts or brute-force attacks on Mira cloud authentication endpoints. Check logs for repeated failed login attempts from the same IP or account. Use network monitoring tools to identify excessive authentication requests targeting these endpoints.

Impact Analysis

An attacker could exploit this to repeatedly guess passwords and gain access to your account. This may lead to unauthorized data access, account takeover, or further attacks within the system. Your sensitive information could be compromised.

Compliance Impact

This vulnerability could lead to unauthorized access to user accounts, potentially exposing sensitive personal data. This may violate GDPR's data protection principles and HIPAA's safeguards for protected health information if such data is compromised.

Mitigation Strategies

Implement rate limiting and account lockout policies on Mira cloud authentication endpoints. Configure per-account and per-IP throttling to prevent brute-force attacks. Monitor and block suspicious login attempts to reduce the risk of unauthorized access.

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