What is the CVSS score of CVE-2024-55538?

CVE-2024-55538 has a CVSS 3.0 base score of 4.0 (Medium). CVSS vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.1%.

Which versions of Microsoft are affected by CVE-2024-55538?

CVE-2024-55538 presents moderate security risk, a missing authentication vulnerability rated CVSS 4.0. This could allow unauthorized access to protected resources.

How to fix or mitigate CVE-2024-55538?

During next maintenance window: Identify affected systems and apply vendor patches when convenient. Audit authentication configurations.

Microsoft CVE-2024-55538

MEDIUM

Missing Authentication for Critical Function (CWE-306)

2025-01-02 security@acronis.com

Microsoft Information Disclosure Authentication Bypass Apple

4.0

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

4.0 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:01 vuln.today

CVE Published

Jan 02, 2025 - 15:15 nvd

MEDIUM 4.0

DescriptionCVE.org

Sensitive information disclosure due to missing authentication. The following products are affected: Acronis True Image (macOS) before build 41725, Acronis True Image (Windows) before build 41736.

AnalysisAI

Sensitive information disclosure due to missing authentication. Rated medium severity (CVSS 4.0), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Missing Authentication for Critical Function (CWE-306), which allows attackers to access critical functionality without authentication. Sensitive information disclosure due to missing authentication. The following products are affected: Acronis True Image (macOS) before build 41725, Acronis True Image (Windows) before build 41736.

Affected ProductsAI

See vendor advisory for affected versions.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Require authentication for all sensitive operations, implement defense in depth.