Intel Reference Platform UEFI FlashUcAcmSmm input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Intel Reference Platform. It has been rated as critical. This affects an unknown function of the component UEFI FlashUcAcmSmm Module. Performing a manipulation results in input validation. This vulnerability is cataloged as CVE-2025-20064. The attack must be initiated from a local position. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Intel Reference Platform (version unknown). It has been classified as critical. This affects an unknown function of the component UEFI FlashUcAcmSmm Module. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Improper input validation in the UEFI FlashUcAcmSmm module for some Intel(R) reference platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable local code execution. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (high) impacts.

It is possible to read the advisory at intel.com. This vulnerability is uniquely identified as CVE-2025-20064 since 10/10/2024. The exploitability is told to be difficult. Attacking locally is a requirement. Additional levels of successful authentication are needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/01/2026).

Upgrading eliminates this vulnerability.

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Productinfo

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License

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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: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.4
VulDB Temp Score: 6.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/10/2024 CVE reserved
03/10/2026 +516 days VulDB entry created
03/11/2026 +0 days Advisory disclosed
05/01/2026 +51 days VulDB entry last update

Sourcesinfo

Vendor: intel.com

Advisory: intel-sa-01234
Status: Confirmed

CVE: CVE-2025-20064 (🔒)
GCVE (CVE): GCVE-0-2025-20064
GCVE (VulDB): GCVE-100-350259

Entryinfo

Created: 03/11/2026 00:24
Updated: 05/01/2026 09:58
Changes: 03/11/2026 00:24 (64), 03/16/2026 07:27 (1), 05/01/2026 09:55 (1), 05/01/2026 09:58 (4)
Complete: 🔍
Committer: lywand
Cache ID: 216::103

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