What is the CVSS score of CVE-2024-39707?

CVE-2024-39707 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N. EPSS exploitation probability: 0.2%.

UEFI CVE-2024-39707

MEDIUM

Missing Authentication for Critical Function (CWE-306)

2024-11-14 cve@mitre.org

Authentication Bypass

5.3

CVSS 3.1 · Vendor: mitre

Severity by source

Vendor (mitre) PRIMARY

5.3 MEDIUM

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

Primary rating from Vendor (mitre) · only source for this CVE.

CVSS VectorVendor: mitre

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

Attack Vector

Local

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

Nov 14, 2024 - 22:15 cve.org

MEDIUM 5.3

DescriptionCVE.org

Insyde IHISI function 0x49 can restore factory defaults for certain UEFI variables without further authentication by default, which could lead to a possible roll-back attack in certain platforms. This is fixed in: kernel 5.2, version 05.29.19; kernel 5.3, version 05.38.19; kernel 5.4, version 05.46.19; kernel 5.5, version 05.54.19; kernel 5.6, version 05.61.19.

AnalysisAI

Insyde IHISI function 0x49 can restore factory defaults for certain UEFI variables without further authentication by default, which could lead to a possible roll-back attack in certain platforms. Rated medium severity (CVSS 5.3). 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. Insyde IHISI function 0x49 can restore factory defaults for certain UEFI variables without further authentication by default, which could lead to a possible roll-back attack in certain platforms. This is fixed in: kernel 5.2, version 05.29.19; kernel 5.3, version 05.38.19; kernel 5.4, version 05.46.19; kernel 5.5, version 05.54.19; kernel 5.6, version 05.61.19. Version information: version 05.29.19.

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.