CVE-2023-21558
📛 CVE Title
Windows Error Reporting Service Elevation of Privilege Vulnerability
Description
Windows Error Reporting Service Elevation of Privilege Vulnerability
Overview
- State
- PUBLISHED
- Assigner (CNA)
- microsoft
- CVSS severity
- HIGH
- CVSS score
- 7.8 / 10
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C- Effective score
- 7.8 / 10 HIGH source: CNA overview
- MSRC score
- 7.8 / 10 HIGH MS rating: Important · Elevation of Privilege
- CWE(s)
-
CWE-20 - Reserved
- 2022-12-01
- 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-2023-21558.json
- Linked Threat
- CVE-2023-21558 — Windows Error Reporting 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 22:15:15 UTC
- NVD last modified
- 2026-06-17 05:33:10 UTC
- NVD CVSS v3.1
- 7.8 / 10 HIGH source: secure@microsoft.com
- NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Exploitability subscore
- 1.8 / 10
- Impact subscore
- 5.9 / 10
- EPSS score
- 0.0046 (probability of exploitation in next 30 days)
- EPSS percentile
- 37.49% vs all CVEs — higher = more likely to be exploited, as of 2026-07-30
NVD / KEV / EPSS data refreshed 2026-07-30 23:38 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
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-2023-25725 - Assigner
- microsoft
- Published
- Jan 10, 2023, 12:00:00 AM
- Updated
- Jan 1, 2025, 12:35:41 AM
- EUVD base score (CVSS 3.1)
-
7.8 / 10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - EUVD-reported EPSS
- 0.6200
- Vendors
- Microsoft
- Products
-
Windows 8.1 (6.3.0 <6.3.9600.20778)Windows 11 version 21H2 (10.0.0 <10.0.22000.1455)Windows Server 2019 (Server Core installation) (10.0.17763.0 <10.0.17763.3887)Windows Server 2012 R2 (6.3.9600.0 <6.3.9600.20778)Windows 11 version 22H2 (10.0.22621.0 <10.0.22621.1105)Windows Server 2012 (6.2.9200.0 <6.2.9200.24075)Windows 10 Version 21H2 (10.0.19043.0 <10.0.19044.2486)Windows Server 2016 (10.0.14393.0 <10.0.14393.5648)Windows Server 2019 (10.0.17763.0 <10.0.17763.3887)Windows Server 2012 R2 (Server Core installation) (6.3.9600.0 <6.3.9600.20778)Windows Server 2016 (Server Core installation) (10.0.14393.0 <10.0.14393.5648)Windows Server 2012 (Server Core installation) (6.2.9200.0 <6.2.9200.24075)Windows 10 Version 1809 (10.0.0 <10.0.17763.3887)Windows 10 Version 20H2 (10.0.0 <10.0.19042.2486)Windows 10 Version 1507 (10.0.10240.0 <10.0.10240.19685)Windows Server 2022 (10.0.20348.0 <10.0.20348.1487)Windows 10 Version 1607 (10.0.14393.0 <10.0.14393.5648)Windows 10 Version 22H2 (10.0.19045.0 <10.0.19045.2486)Windows 10 Version 1809 (10.0.17763.0 <10.0.17763.3887)
- Aliases
-
GHSA-qqq2-cqxh-535j
ENISA description: Windows Error Reporting Service Elevation of Privilege Vulnerability
EUVD references (1)
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
- 7.8 / 10 (temporal 6.8)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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 Less Likely;DOS:N/A
- Release
- 2023-Jan
Microsoft remediations / KB articles (18)
- 5022286 — Vendor Fix / Security Update (fixed build 10.0.17763.3887)
- 5022286 — Update
- 5022291 — Vendor Fix / Security Update (fixed build 10.0.20348.1487)
- 5022282 — Vendor Fix / Security Update (fixed build 10.0.19042.2486)
- 5022282 — Update
- 5022287 — Vendor Fix / Security Update (fixed build 10.0.22000.1455)
- 5022303 — Vendor Fix / Security Update (fixed build 10.0.22621.1105)
- 5022303 — Update
- 5022297 — Vendor Fix / Security Update (fixed build 10.0.10240.19685)
- 5022289 — Vendor Fix / Security Update (fixed build 10.0.14393.5648)
- 5022352 — Vendor Fix / Monthly Rollup (fixed build 6.3.9600.20778)
- 5022352 — Update
- 5022346 — Vendor Fix / Security Only (fixed build 6.3.9600.20778)
- 5022346 — Update
- 5022348 — Vendor Fix / Monthly Rollup (fixed build 6.2.9200.24075)
- 5022348 — Update
- 5022343 — Vendor Fix / Security Only (fixed build 6.2.9200.24075)
- 5022343 — Update
Microsoft FAQ (1)
What privileges could be gained by an attacker who successfully exploited the vulnerability?
An attacker who successfully exploited this vulnerability could gain specific limited SYSTEM privileges.
Affected products (19)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| 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 Server 2019 |
10.0.17763.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2019 (Server Core installation) |
10.0.17763.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2022 |
10.0.20348.0 (affected)
|
x64-based Systems |
| Microsoft | Windows 10 Version 20H2 |
10.0.0 (affected)
|
32-bit Systems, ARM64-based Systems |
| Microsoft | Windows 11 version 21H2 |
10.0.0 (affected)
|
x64-based Systems, ARM64-based Systems |
| Microsoft | Windows 10 Version 21H2 |
10.0.19043.0 (affected)
|
32-bit Systems, ARM64-based Systems, x64-based Systems |
| Microsoft | Windows 11 version 22H2 |
10.0.22621.0 (affected)
|
ARM64-based Systems, x64-based Systems |
| Microsoft | Windows 10 Version 22H2 |
10.0.19045.0 (affected)
|
x64-based Systems, ARM64-based Systems, 32-bit Systems |
| Microsoft | Windows 10 Version 1507 |
10.0.10240.0 (affected)
|
32-bit Systems, x64-based Systems |
| Microsoft | Windows 10 Version 1607 |
10.0.14393.0 (affected)
|
32-bit Systems, x64-based Systems |
| Microsoft | Windows Server 2016 |
10.0.14393.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2016 (Server Core installation) |
10.0.14393.0 (affected)
|
x64-based Systems |
| Microsoft | Windows 8.1 |
6.3.0 (affected)
|
32-bit Systems, x64-based Systems, ARM64-based Systems |
| Microsoft | Windows Server 2012 |
6.2.9200.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2012 (Server Core installation) |
6.2.9200.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2012 R2 |
6.3.9600.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |
6.3.9600.0 (affected)
|
x64-based Systems |
Affected products — CPE 2.3 (17) 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:*:*:*:*:*:-:*cpe:2.3:o:microsoft:windows_11:22h2:*:*:*:*:*:-:*cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*
Vendor references (1)
References embedded in the original CVE record by the assigning CNA.
Web references (19)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
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-2023-21558 secure@microsoft.com
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21558 af854a3a-2127-422b-91ae-364da2661108
Remediations (17)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:access.redhat.com
Learn about our open source products, services, and company. You are here
2026-06-03 20:46 UTC -
web:gemini.google.com
Meet Gemini, Google's AI assistant. Get help with writing, planning, brainstorming, and more. Experience the power of generative AI.
2026-06-03 20:46 UTC -
web:github.com
Patch your vbmeta image. Contribute to cd-Crypton/vbmeta-action-patcher development by creating an account on GitHub.
2026-06-03 20:46 UTC -
web:nvd.nist.gov
The NVD is the U.S. government repository of standards based vulnerability management data represented using the Security Content Automation Protocol (SCAP). This data enables automation of vulnerability management, security measurement, and compliance. The NVD includes databases of security checklist references, security-related software flaws, product names, and impact metrics. For ...
2026-06-03 20:46 UTC -
web:www.bleepingcomputer.com
CISA has ordered government agencies to secure their systems against a high-severity Oracle WebLogic Server vulnerability that was patched two years ago and is now actively exploited in attacks.
2026-06-03 20:46 UTC -
web:www.oracle.com
Critical Security Patch Updates Critical Security Patch Updates provide security patches for supported Oracle on-premises products. A Critical Security Patch Update provides targeted, high-priority security fixes in a smaller, more focused format, making them easier to apply with minimal disruption.
2026-06-03 20:46 UTC -
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.
2026-06-03 20:46 UTC -
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 05:43 UTC -
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 05:43 UTC -
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 05:43 UTC -
web:www.helpnetsecurity.com
Microsoft is working on a fix for CVE -2026-45585 (aka "Yellowkey"), a vulnerability that can be used to bypass Windows' BitLocker protection.
2026-05-22 05:43 UTC -
web:cybersecuritynews.com
No patch has been released yet; Microsoft has instead issued a multi-step manual mitigation guide while a formal security update is prepared. Windows BitLocker Security Bypass The vulnerability originates in WinRE's handling of the BootExecute registry value under HKLM\ControlSet001\Control\Session Manager.
2026-05-22 05:43 UTC -
web:www.lansweeper.com
Which vulnerabilities, issues, and other things did Microsoft update? Discover what's new using Lansweeper's Patch Tuesday November 2025 summary.
2026-05-22 05:43 UTC -
web:www.securityweek.com
Microsoft has announced mitigations for CVE -2026-45585, a BitLocker bypass triggered via FsTx in Windows Recovery.
2026-05-22 05:43 UTC -
web:krebsonsecurity.com
Microsoft Corp. today issued security updates to fix more than 80 vulnerabilities in its Windows operating systems and software. There are no known "zero-day" or actively exploited ...
2026-05-22 05:43 UTC -
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 05:43 UTC -
web:petervanderwoude.nl
This week is all about the latest changes in updating Windows 11 devices. That change is the introduction of hotpatch updates for Windows 11 Enterprise. Hotpatching helps organizations with keeping Windows secure, while minimizing the disruptions for the user. A significant step in keeping Windows more secure and productive. Hotpatching removes the requirement for Windows…
2026-05-22 05:43 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2023-21558.json.
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