Intel Processors UEFI Firmware insufficient granularity of access control

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Intel Processors. This vulnerability affects unknown code of the component UEFI Firmware. The manipulation results in insufficient granularity of access control. This vulnerability is known as CVE-2024-39279. Attacking locally is a requirement. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Intel Processors (unknown version). Affected is an unknown code block of the component UEFI Firmware. The manipulation with an unknown input leads to a insufficient granularity of access control vulnerability. CWE is classifying the issue as CWE-1220. The product implements access controls via a policy or other feature with the intention to disable or restrict accesses (reads and/or writes) to assets in a system from untrusted agents. However, implemented access controls lack required granularity, which renders the control policy too broad because it allows accesses from unauthorized agents to the security-sensitive assets. This is going to have an impact on availability. CVE summarizes:

Insufficient granularity of access control in UEFI firmware in some Intel(R) processors may allow a authenticated user to potentially enable denial of service via local access.

The advisory is available at intel.com. This vulnerability is traded as CVE-2024-39279 since 06/25/2024. The exploitability is told to be easy. Local access is required to approach this attack. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 216356 (Fedora 41 : microcode_ctl (2025-c99f9d789a)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (216356). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (intel): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Insufficient granularity of access control
CWE: CWE-1220 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 216356
Nessus Name: Fedora 41 : microcode_ctl (2025-c99f9d789a)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/25/2024 🔍
02/12/2025 +232 days 🔍
02/12/2025 +0 days 🔍
05/01/2026 +443 days 🔍

Sourcesinfo

Vendor: intel.com

Advisory: intel-sa-01139
Status: Confirmed

CVE: CVE-2024-39279 (🔍)
GCVE (CVE): GCVE-0-2024-39279
GCVE (VulDB): GCVE-100-295650

Entryinfo

Created: 02/12/2025 23:31
Updated: 05/01/2026 10:54
Changes: 02/12/2025 23:31 (73), 02/16/2025 13:03 (2), 05/01/2026 10:51 (1), 05/01/2026 10:54 (4)
Complete: 🔍
Committer: lywand
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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