CVE-2026-59500
Received Received - Intake

Improper Authentication in Unknown Product

Publication date: 2026-08-13

Last updated on: 2026-08-13

Assigner: Israel National Cyber Directorate

Description
CWE-287: Improper Authentication

CVSS Scores

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Meta Information

Published
2026-08-13
Last Modified
2026-08-13
Generated
2026-08-13
AI Q&A
2026-08-13
EPSS Evaluated
N/A
NVD
CVE-2026-59500
EUVD
EUVD-2026-57761

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-287 When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Attack-Flow Graph

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Executive Summary

This vulnerability is an improper authentication issue, classified under CWE-287. It means the system fails to properly verify the identity of users or other entities, allowing unauthorized access. The CVSS score of 10.0 indicates critical severity with full impact on confidentiality and integrity.

Impact Analysis

This vulnerability could allow attackers to gain unauthorized access to systems or data, leading to data breaches, data manipulation, or complete system compromise. Since the CVSS score is 10.0, the impact is severe and could affect any system using the vulnerable component.

Compliance Impact

This vulnerability likely violates compliance requirements for GDPR and HIPAA, as both mandate strong authentication and access controls. A breach due to improper authentication could result in legal penalties, fines, and reputational damage for organizations handling sensitive data.

Mitigation Strategies

Implement strong authentication mechanisms such as multi-factor authentication (MFA) and ensure all authentication processes are properly validated. Review and update access controls to restrict unauthorized access.

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