CVE-2025-20053

Published Aug 12, 2025 CVSS 4.0 · 7 High EPSS < 1% KEV · Not listed
Description
Improper buffer restrictions for some Intel(R) Xeon(R) Processor firmware with SGX enabled may allow a privileged user to potentially enable escalation of privilege via local access.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4347-1 intel-microcode security update
Debian DSA Debian DSA DSA-6030-1 intel-microcode security update
EUVD EUVD EUVD-2025-24440 Improper buffer restrictions for some Intel(R) Xeon(R) Processor firmware with SGX enabled may allow a privileged user to potentially enable escalation of privilege via local access.
Ubuntu USN Ubuntu USN USN-7866-1 Intel Microcode vulnerabilities
History
Type Values Removed Values Added
First Time appeared Intel
Intel processor
Intel xeon
Intel xeon Processors
Vendors & Products Intel
Intel processor
Intel xeon
Intel xeon Processors
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Improper buffer restrictions for some Intel(R) Xeon(R) Processor firmware with SGX enabled may allow a privileged user to potentially enable escalation of privilege via local access.
Weaknesses CWE-119
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N'}

cvssV4_0

{'score': 7, 'vector': 'CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
intel
Published
Updated
Feb 26, 2026, 5:49 PM
Reserved
Jan 16, 2025, 4:00 AM
Status
Deferred
Published
Aug 12, 2025, 5:15 PM
Modified
Jun 17, 2026, 8:40 AM