What is the CVSS score of CVE-2020-12053?

CVE-2020-12053 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.7%.

Stealth CVE-2020-12053

CRITICAL

Incorrect Authorization (CWE-863)

2020-06-22 cve@mitre.org

Authentication Bypass Stealth

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jun 22, 2020 - 20:15 nvd

CRITICAL 9.8

DescriptionNVD

In Unisys Stealth 3.4.x, 4.x and 5.x before 5.0.026, if certificate-based authorization is used without HTTPS, an endpoint could be authorized without a private key.

AnalysisAI

In Unisys Stealth 3.4.x, 4.x and 5.x before 5.0.026, if certificate-based authorization is used without HTTPS, an endpoint could be authorized without a private key. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Incorrect Authorization (CWE-863), which allows attackers to bypass authorization checks to access restricted resources. In Unisys Stealth 3.4.x, 4.x and 5.x before 5.0.026, if certificate-based authorization is used without HTTPS, an endpoint could be authorized without a private key. Affected products include: Unisys Stealth. Version information: before 5.0.026.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Review and test authorization logic, implement consistent access control checks, use centralized authorization framework.