CVE-2023-21752

Description

Windows Backup Service Elevation of Privilege Vulnerability

Overview

State: PUBLISHED
Assigner (CNA): microsoft
CVSS severity: HIGH
CVSS score: 7.1 / 10
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C
Effective score: 7.1 / 10 HIGH source: CNA overview
MSRC score: 7.1 / 10 HIGH MS rating: Important · Elevation of Privilege
CWE(s): CWE-284
Reserved: 2022-12-13
Published: 2023-01-10 08:00 UTC
Last updated: 2023-01-10 08:00 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2023/21xxx/CVE-2023-21752.json
Linked Threat: CVE-2023-21752 — Windows Backup Service Elevation of Privilege Vulnerability

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2023-01-10 22:15:18 UTC
NVD last modified: 2026-06-17 05:33:53 UTC
NVD CVSS v3.1: 7.1 / 10 HIGH source: secure@microsoft.com
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Exploitability subscore: 1.8 / 10
Impact subscore: 5.2 / 10
EPSS score: 0.0533 (probability of exploitation in next 30 days)
EPSS percentile: 91.79% vs all CVEs — higher = more likely to be exploited, as of 2026-08-01

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2023-25919
Assigner: microsoft
Published: Jan 10, 2023, 12:00:00 AM
Updated: Jan 1, 2025, 12:36:01 AM
EUVD base score (CVSS 3.1): 7.1 / 10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C
EUVD-reported EPSS: 32.8100
Vendors: Microsoft
Products: Windows 10 Version 22H2 (10.0.19045.0 <10.0.19045.2486)

Windows 11 version 21H2 (10.0.0 <10.0.22000.1455)

Windows 7 Service Pack 1 (6.1.0 <6.1.7601.26321)

Windows 10 Version 1809 (10.0.0 <10.0.17763.3887)

Windows 10 Version 21H2 (10.0.19043.0 <10.0.19044.2486)

Windows 10 Version 1507 (10.0.10240.0 <10.0.10240.19685)

Windows 11 version 22H2 (10.0.22621.0 <10.0.22621.1105)

Windows 10 Version 1607 (10.0.14393.0 <10.0.14393.5648)

Windows 10 Version 1809 (10.0.17763.0 <10.0.17763.3887)

Windows 7 (6.1.0 <6.1.7601.26321)

Windows 10 Version 20H2 (10.0.0 <10.0.19042.2486)
Aliases: GHSA-4v5x-38hq-2rvf

ENISA description: Windows Backup Service Elevation of Privilege Vulnerability

EUVD references (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21752

Microsoft Security Response Center MSRC

Microsoft's vendor-authoritative record from the Security Update Guide — its own CVSS score, impact, severity rating, exploit assessment, and KB-article fixes. Refreshed 2026-08-12 01:00 UTC (source: CVRF).

MS severity: Important
Impact: Elevation of Privilege
MS CVSS base score: 7.1 / 10 (temporal 6.2)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C
Exploit assessment: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation More Likely;DOS:N/A
Release: 2023-Jan

Microsoft remediations / KB articles (13)

5022282 — Vendor Fix / Security Update (fixed build 10.0.19045.2486)
5022282 — Update
5022303 — Vendor Fix / Security Update (fixed build 10.0.22621.1105)
5022303 — Update
5022287 — Vendor Fix / Security Update (fixed build 10.0.22000.1455)
5022286 — Vendor Fix / Security Update (fixed build 10.0.17763.3887)
5022286 — Update
5022289 — Vendor Fix / Security Update (fixed build 10.0.14393.5648)
5022338 — Vendor Fix / Monthly Rollup (fixed build 6.1.7601.26321)
5022338 — Update
5022339 — Vendor Fix / Security Only (fixed build 6.1.7601.26321)
5022339 — Update
5022297 — Vendor Fix / Security Update (fixed build 10.0.10240.19685)

Microsoft FAQ (2)

According to the CVSS metrics, successful exploitation of this vulnerability could lead to no loss of confidentiality (C:N) but have major impact on integrity (I:H) and on availability (A:H). What does that mean for this vulnerability?

This vulnerability does not allow disclosure of any confidential information, but could allow an attacker to delete data that could include data that results in the service being unavailable.

What privileges could be gained by an attacker who successfully exploited this vulnerability?

An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Affected products (11)

Vendor	Product	Versions	Platforms
Microsoft	Windows 10 Version 22H2	`10.0.19045.0` (affected)	ARM64-based Systems, 32-bit Systems, x64-based Systems
Microsoft	Windows 11 version 22H2	`10.0.22621.0` (affected)	ARM64-based Systems, x64-based Systems
Microsoft	Windows 10 Version 21H2	`10.0.19043.0` (affected)	ARM64-based Systems, 32-bit Systems, x64-based Systems
Microsoft	Windows 11 version 21H2	`10.0.0` (affected)	x64-based Systems, ARM64-based Systems
Microsoft	Windows 10 Version 20H2	`10.0.0` (affected)	32-bit Systems, ARM64-based Systems
Microsoft	Windows 10 Version 1809	`10.0.17763.0` (affected)	32-bit Systems, x64-based Systems
Microsoft	Windows 10 Version 1809	`10.0.0` (affected)	ARM64-based Systems
Microsoft	Windows 10 Version 1607	`10.0.14393.0` (affected)	32-bit Systems, x64-based Systems
Microsoft	Windows 7 Service Pack 1	`6.1.0` (affected)	x64-based Systems
Microsoft	Windows 10 Version 1507	`10.0.10240.0` (affected)	x64-based Systems, 32-bit Systems
Microsoft	Windows 7	`6.1.0` (affected)	32-bit Systems

Affected products — CPE 2.3 (13) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:22h2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11:21h2:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11:21h2:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11:22h2:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11:22h2:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*

Vendor references (1)

References embedded in the original CVE record by the assigning CNA.

Windows Backup Service Elevation of Privilege Vulnerability vendor-advisory

Web references (20)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

5022282 msrc
5022286 msrc
5022287 msrc
5022289 msrc
5022297 msrc
5022303 msrc
5022338 msrc
5022339 msrc
5022338 msrc
5022339 msrc
MSRC update guide: CVE-2023-21752 msrc
https://www.cve.org/CVERecord?id=CVE-2023-21752 rapid7:www.cve.org
https://attackerkb.com/topics/CVE-2023-21752 rapid7:attackerkb.com
https://support.microsoft.com/help/5022282 rapid7:support.microsoft.com
https://support.microsoft.com/help/5022286 rapid7:support.microsoft.com
https://support.microsoft.com/help/5022287 rapid7:support.microsoft.com
https://support.microsoft.com/help/5022289 rapid7:support.microsoft.com
https://support.microsoft.com/help/5022297 rapid7:support.microsoft.com
https://support.microsoft.com/help/5022303 rapid7:support.microsoft.com
http://cwe.mitre.org/data/definitions/284.html rapid7:cwe.mitre.org

NVD-tagged references (2)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21752 secure@microsoft.com
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21752 af854a3a-2127-422b-91ae-364da2661108

Remediations (17)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

Oracle Critical Patch Update Advisory - October 2025

web:www.oracle.com

This Critical Patch Update contains 374 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at October 2025 Critical Patch Update: Executive Summary and Analysis.

2026-06-04 09:14 UTC
NVD - Vulnerabilities

web:nvd.nist.gov

Vulnerabilities All vulnerabilities in the NVD have been assigned a CVE identifier and thus, abide by the definition below. CVE defines a vulnerability as: "A weakness in the computational logic (e.g., code) found in software and hardware components that, when exploited, results in a negative impact to confidentiality, integrity, or availability. Mitigation of the vulnerabilities in this ...

2026-06-04 09:14 UTC
Patch Tuesday - November 2025 - Rapid7

web:www.rapid7.com

Microsoft is publishing 66 new vulnerabilities today, which is far fewer than we've come to expect in recent months. However, the lone zero-day vulnerability this month demands attention.

2026-06-04 09:14 UTC
Microsoft Technical Security Notifications

web:www.microsoft.com

Security Update Guide Notifications Microsoft's free Security Update Guide Notifications provide links to security-related software updates and notification of re-released security updates. These notifications are sent via email throughout the month as needed.

2026-06-04 09:14 UTC
Landing Page | ServiceNow Common Vulnerabilities & Exposures (CVE ...

web:support.servicenow.com

Overview The advisories below document publicly disclosed Common Vulnerabilities and Exposures ( CVEs ) in the Now Platform by ServiceNow. Because ServiceNow uses various methods to communicate vulnerability information, patches, and other fixes, customers should review family, security patch , and hotfix release notes, which are available at https://docs.servicenow.com, for a complete list of ...

2026-06-04 09:14 UTC
Oracle Critical Patch Update Advisory - January 2025

web:www.oracle.com

This Critical Patch Update contains 318 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at January 2025 Critical Patch Update: Executive Summary and Analysis.

2026-06-04 09:14 UTC
‎Google Gemini

web:gemini.google.com

Meet Gemini, Google's AI assistant. Get help with writing, planning, brainstorming, and more. Experience the power of generative AI.

2026-06-04 09:14 UTC
Vulnerability Remediation vs. Mitigation: What are the Differences ...

web:www.secure.com

Learn the difference between vulnerability remediation and mitigation , and how a risk-based strategy can strengthen your security posture.

2026-05-22 05:46 UTC
Microsoft Patches 83 Vulnerabilities - SecurityWeek

web:www.securityweek.com

Microsoft has rolled out fixes for 83 vulnerabilities in its products, including a critical bug, but none of them require urgent attention.

2026-05-22 05:46 UTC
Randy Franklin Smith's Ultimate Windows Security

web:www.ultimatewindowssecurity.com

How to Detect Pass-the-Hash Attacks Blog Series Come meet Randy in Orlando at Microsoft Ignite at Quest's Booth #1818 Detecting Pass-the-Hash with Honeypots Catch Malware Hiding in WMI with Sysmon For of all sad words of tongue or pen, the saddest are these: 'We weren't logging' Experimenting with Windows Security: Controls for Enforcing Policies Sysmon Event IDs 1, 6, 7 Report All the ...

2026-05-22 05:46 UTC
Patch Tuesday May 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-05-22 05:46 UTC
Security Update Guide - Microsoft

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-05-22 05:46 UTC
Google Translate

web:translate.google.com

Google's service, offered free of charge, instantly translates words, phrases, and web pages between English and over 100 other languages.

2026-05-22 05:46 UTC
A guide to vulnerability remediation vs mitigation | @Bugcrowd

web:www.bugcrowd.com

Vulnerability mitigation is typically considered a temporary or interim solution. While mitigation measures can reduce the immediate risk associated with vulnerabilities, they may not provide a permanent fix . Organizations should aim to prioritize and plan for complete vulnerability remediation whenever feasible and allocate resources accordingly.

2026-05-22 05:46 UTC
February's Patch Tuesday release fixes 59 flaws ... - Computerworld

web:www.computerworld.com

Each month, the team at Readiness analyzes the latest Patch Tuesday updates from Microsoft and provides detailed, actionable testing guidance. The company's Patch Tuesday release for February ...

2026-05-22 05:46 UTC
Oracle Critical Patch Update Advisory - April 2026

web:www.oracle.com

This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

2026-05-22 05:46 UTC
Microsoft fixes 167 security flaws in April, second biggest Patch ...

web:www.pcworld.com

This month's Patch Tuesday includes an actively exploited Office zero-day vulnerability and several critical RCE bugs in Windows and Remote Desktop.

2026-05-22 05:46 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2023-21752.json.

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    "assignerShortName": "microsoft",
    "cveId": "CVE-2023-21752",
    "datePublished": "2023-01-10T00:00:00.000Z",
    "dateReserved": "2022-12-13T00:00:00.000Z",
    "dateUpdated": "2025-01-01T00:36:01.058Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}