Details of VAR-202508-2839

ID

VAR-202508-2839

CVE

CVE-2025-20053

TITLE

Intel Xeon Processors Privilege Escalation Vulnerability (CNVD-2025-21340)

Trust: 0.6

sources: CNVD: CNVD-2025-21340

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. Intel Xeon Processors are a series of processors designed for enterprise servers, workstations, and the high-performance computing (HPC) market. They primarily serve data centers, cloud computing, and artificial intelligence. Detailed vulnerability details are not currently available

Trust: 1.44

sources: NVD: CVE-2025-20053 // CNVD: CNVD-2025-21340

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-21340

AFFECTED PRODUCTS

vendor:

intel

model:

xeon processor

scope:

version:

Trust: 0.6

sources: CNVD: CNVD-2025-21340

CVSS

SEVERITY

CVSSV2

CVSSV3

secure@intel.com:	CVE-2025-20053
value:	HIGH
Trust: 1.0
CNVD:	CNVD-2025-21340
value:	MEDIUM
Trust: 0.6

CNVD:	CNVD-2025-21340
severity:	MEDIUM
baseScore:	5.3
vectorString:	AV:L/AC:H/AU:M/C:C/I:C/A:N
accessVector:	LOCAL
accessComplexity:	HIGH
authentication:	MULTIPLE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	NONE
exploitabilityScore:	1.2
impactScore:	9.2
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

secure@intel.com:	CVE-2025-20053
baseSeverity:	HIGH
baseScore:	7.2
vectorString:	CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
attackVector:	LOCAL
attackComplexity:	HIGH
privilegesRequired:	HIGH
userInteraction:	NONE
scope:	CHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	NONE
exploitabilityScore:	0.8
impactScore:	5.8
version:	3.1
Trust: 1.0

sources: CNVD: CNVD-2025-21340 // NVD: CVE-2025-20053

PROBLEMTYPE DATA

problemtype:

CWE-119

Trust: 1.0

sources: NVD: CVE-2025-20053

PATCH

title:

Patch for Intel Xeon Processors Privilege Escalation Vulnerability (CNVD-2025-21340)

url:

https://www.cnvd.org.cn/patchInfo/show/732291

Trust: 0.6

sources: CNVD: CNVD-2025-21340

EXTERNAL IDS

db:	NVD	id:	CVE-2025-20053	Trust: 1.6
db:	CNVD	id:	CNVD-2025-21340	Trust: 0.6

sources: CNVD: CNVD-2025-21340 // NVD: CVE-2025-20053

REFERENCES

url:	https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01313.html	Trust: 1.0
url:	https://nvd.nist.gov/vuln/detail/cve-2025-20053	Trust: 0.6

sources: CNVD: CNVD-2025-21340 // NVD: CVE-2025-20053

SOURCES

db:	CNVD	id:	CNVD-2025-21340
db:	NVD	id:	CVE-2025-20053

LAST UPDATE DATE

2025-09-18T23:08:11.694000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-21340	date:	2025-09-16T00:00:00
db:	NVD	id:	CVE-2025-20053	date:	2025-08-13T17:34:12.350

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-21340	date:	2025-09-15T00:00:00
db:	NVD	id:	CVE-2025-20053	date:	2025-08-12T17:15:28.280