Intel Quick Assist Technology Alternate Hardware Interface missing protection mechanism for alternate hardware interface

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Intel Quick Assist Technology. This affects an unknown part of the component Alternate Hardware Interface. Executing a manipulation can lead to missing protection mechanism for alternate hardware interface. This vulnerability is handled as CVE-2025-35998. It is possible to launch the attack on the local host. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Intel Quick Assist Technology (version unknown) and classified as problematic. This vulnerability affects an unknown function of the component Alternate Hardware Interface. The manipulation with an unknown input leads to a missing protection mechanism for alternate hardware interface vulnerability. The CWE definition for the vulnerability is CWE-1299. The lack of protections on alternate paths to access control-protected assets (such as unprotected shadow registers and other external facing unguarded interfaces) allows an attacker to bypass existing protections to the asset that are only performed against the primary path. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Missing protection mechanism for alternate hardware interface in the Intel(R) Quick Assist Technology for some Intel(R) Platforms within Ring 0: Kernel may allow an escalation of privilege. System software adversary with a privileged user combined with a low complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

The advisory is available at intel.com. This vulnerability was named CVE-2025-35998 since 04/15/2025. The exploitation appears to be easy. Local access is required to approach this attack. The exploitation needs additional levels of successful authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 02/20/2026).

The vulnerability scanner Nessus provides a plugin with the ID 299328 (Linux Distros Unpatched Vulnerability : CVE-2025-35998), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (299328). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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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: 6.1
VulDB Meta Temp Score: 6.1

VulDB Base Score: 4.2
VulDB Temp Score: 4.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.9
CNA Vector (intel): 🔒

CVSSv2info

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

Exploitinginfo

Class: Missing protection mechanism for alternate hardware interface
CWE: CWE-1299
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: 299328
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-35998

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/15/2025 CVE reserved
02/10/2026 +301 days Advisory disclosed
02/10/2026 +0 days VulDB entry created
02/20/2026 +10 days VulDB entry last update

Sourcesinfo

Vendor: intel.com

Advisory: intel-sa-01406
Status: Confirmed

CVE: CVE-2025-35998 (🔒)
GCVE (CVE): GCVE-0-2025-35998
GCVE (VulDB): GCVE-100-345226

Entryinfo

Created: 02/10/2026 18:40
Updated: 02/20/2026 09:30
Changes: 02/10/2026 18:40 (73), 02/20/2026 09:30 (4)
Complete: 🔍
Cache ID: 216::103

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

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