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CVE-2026-20713: Escalation of Privilege in Intel(R) Xeon(R) processors may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. 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 (none), integrity (none) and availability (none

0
Medium
VulnerabilityCVE-2026-20713cvecve-2026-20713
Published: 08/11/2026 (08/11/2026, 16:25:23 UTC)
Source: CVE Database V5
Product: Intel(R) Xeon(R) processors may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. 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 (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.

Description

Always-incorrect control flow implementation in some firmware for some Intel(R) Xeon(R) processors may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. 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 (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.

CVSS v4.0

Score 4.5medium

Attack Vector
Local
Attack Complexity
High
Attack Requirements
None
Privileges Required
High
User Interaction
None
Vuln. Confidentiality
None
Vuln. Integrity
None
Vuln. Availability
None
Subsq. Confidentiality
High
Subsq. Integrity
High
Subsq. Availability
None
CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

Affected software

Intel(R) Xeon(R) processors may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. 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 (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/12/2026, 00:28:15 UTC

Technical Analysis

This vulnerability involves an always-incorrect control flow implementation in certain firmware for Intel Xeon processors, which may allow escalation of privilege. Exploitation requires a privileged user and a complex local attack without user interaction or special internal knowledge. Although the initial vulnerability does not directly impact confidentiality, integrity, or availability, successful exploitation could result in high confidentiality and integrity impacts on the system. No specific affected versions or remediation details are available.

Potential Impact

The vulnerability may allow a local attacker with privileged user access to escalate privileges, potentially leading to high confidentiality and integrity impacts on the affected system. There is no direct impact on availability. The attack complexity is high, and no user interaction is required.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or mitigation details are provided at this time.

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Technical Details

Data Version
5.2
Assigner Short Name
intel
Date Reserved
2025-12-09T04:00:18.710Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6a7b5466bf8831d53910682e

Added to database: 08/11/2026, 16:57:10 UTC

Last enriched: 08/12/2026, 00:28:15 UTC

Last updated: 09/25/2026, 01:47:41 UTC

Views: 40

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