CVE-2021-34486
published 2021-08-12CVE-2021-34486: Windows Event Tracing Elevation of Privilege Vulnerability
PriorityP180high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
KEVITWEXPLOIT
CISA Known Exploited Vulnerabilitydue 2022-04-18
Exploited in the wild
EPSS
7.43%
93.8th percentile
Windows Event Tracing Elevation of Privilege Vulnerability
Affected
34 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10_1809 | < 10.0.17763.2114 | 10.0.17763.2114 |
| microsoft | windows_10_1909 | < 10.0.18363.1734 | 10.0.18363.1734 |
| microsoft | windows_10_2004 | < 10.0.19041.1165 | 10.0.19041.1165 |
| microsoft | windows_10_20h2 | < 10.0.19042.1165 | 10.0.19042.1165 |
| microsoft | windows_10_21h1 | < 10.0.19043.1165 | 10.0.19043.1165 |
| microsoft | windows_10_version_1809 | >= 10.0.0 < 10.0.17763.2114 | 10.0.17763.2114 |
| microsoft | windows_10_version_1909 | >= 10.0.0 < 10.0.18363.1734 | 10.0.18363.1734 |
| microsoft | windows_10_version_2004 | >= 10.0.0 < 10.0.19041.1165 | 10.0.19041.1165 |
| microsoft | windows_10_version_20h2 | >= 10.0.0 < 10.0.19042.1165 | 10.0.19042.1165 |
| microsoft | windows_10_version_21h1 | >= 10.0.0 < 10.0.19043.1165 | 10.0.19043.1165 |
| microsoft | windows_server_2004 | < 10.0.19041.1165 | 10.0.19041.1165 |
| microsoft | windows_server_2019 | < 10.0.17763.2114 | 10.0.17763.2114 |
| microsoft | windows_server_2019 | >= 10.0.0 < 10.0.17763.2114 | 10.0.17763.2114 |
| microsoft | windows_server_20h2 | < 10.0.19042.1165 | 10.0.19042.1165 |
| microsoft | windows_server_version_2004 | >= 10.0.0 < 10.0.19041.1165 | 10.0.19041.1165 |
| microsoft | windows_server_version_20h2 | >= 10.0.0 < 10.0.19042.1165 | 10.0.19042.1165 |
| msrc | windows_10_version_1809_for_32-bit_systems | — | — |
| msrc | windows_10_version_1809_for_arm64-based_systems | — | — |
| msrc | windows_10_version_1809_for_x64-based_systems | — | — |
| msrc | windows_10_version_1909_for_32-bit_systems | — | — |
| msrc | windows_10_version_1909_for_arm64-based_systems | — | — |
| msrc | windows_10_version_1909_for_x64-based_systems | — | — |
| msrc | windows_10_version_2004_for_32-bit_systems | — | — |
| msrc | windows_10_version_2004_for_arm64-based_systems | — | — |
| msrc | windows_10_version_2004_for_x64-based_systems | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- ·Exploit status is publicly disclosed: No, exploited: No, with exploitation rated 'Less Likely' for both latest and older software releases — no active exploitation artifacts or public PoC are documented in the provided sources. ↗
- ·CISA KEV lists this as a known exploited vulnerability requiring patch application, but provides no technical exploitation details or indicators in the source material. ↗
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P
vulncheck7.8HIGH
cisa7.8HIGH
vendor_msrc7.8HIGH
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GHSA
GHSA-62pw-5259-vhh9: Windows Event Tracing Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-26425, CVE-2021-34486
ghsa_unreviewed·2022-05-24·CVSS 7.8
CVE-2021-34487 [HIGH] CWE-269 GHSA-62pw-5259-vhh9: Windows Event Tracing Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-26425, CVE-2021-34486
Windows Event Tracing Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-26425, CVE-2021-34486.
GHSA
GHSA-793m-wq3j-whvr: Windows Event Tracing Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-26425, CVE-2021-34487
ghsa_unreviewed·2022-05-24·CVSS 7.8
CVE-2021-34486 [HIGH] CWE-269 GHSA-793m-wq3j-whvr: Windows Event Tracing Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-26425, CVE-2021-34487
Windows Event Tracing Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-26425, CVE-2021-34487.
GHSA
GHSA-467h-6pw9-97gq: Windows Event Tracing Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-34486, CVE-2021-34487
ghsa_unreviewed·2022-05-24·CVSS 7.8
CVE-2021-26425 [HIGH] CWE-269 GHSA-467h-6pw9-97gq: Windows Event Tracing Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-34486, CVE-2021-34487
Windows Event Tracing Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-34486, CVE-2021-34487.
VulnCheck
Microsoft Windows Event Tracing Privilege Escalation Vulnerability
vulncheck·2021·CVSS 7.8
CVE-2021-34486 [HIGH] CWE-416 Microsoft Windows Event Tracing Privilege Escalation Vulnerability
Microsoft Windows Event Tracing Privilege Escalation Vulnerability
Microsoft Windows Event Tracing contains an unspecified vulnerability which can allow for privilege escalation.
Affected: Microsoft Windows
Required Action: Apply updates per vendor instructions.
Exploitation References: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json
Exploit PoC: https://vulncheck.com/xdb/88847e980e21
Remediation Due: 2022-04-18
CISA
Microsoft Windows Event Tracing Privilege Escalation Vulnerability
cisa·2022-03-28·CVSS 7.8
CVE-2021-34486 [HIGH] CWE-416 Microsoft Windows Event Tracing Privilege Escalation Vulnerability
Vulnerability: Microsoft Windows Event Tracing Privilege Escalation Vulnerability
Affected: Microsoft Windows
Microsoft Windows Event Tracing contains an unspecified vulnerability which can allow for privilege escalation.
Required Action: Apply updates per vendor instructions.
Notes: https://nvd.nist.gov/vuln/detail/CVE-2021-34486
Remediation Due Date: 2022-04-18
Microsoft
Windows Event Tracing Elevation of Privilege Vulnerability
vendor_msrc·2021-08-10·CVSS 7.8
CVE-2021-34486 [HIGH] Windows Event Tracing Elevation of Privilege Vulnerability
Windows Event Tracing Elevation of Privilege Vulnerability
Windows Event Tracing: Windows Event Tracing
Microsoft: Microsoft
Impact: Elevation of Privilege
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely;DOS:N/A
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5005030
Reference: https://support.microsoft.com/help/5005030
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5005031
Reference: https://support.microsoft.com/help/5005031
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5005033
Reference: https://support.microsoft.com/help/5005033
No detection rules found.
No public exploits indexed.
Qualys
Microsoft and Adobe Patch Tuesday (August 2021) – Microsoft 51 Vulnerabilities with 7 Critical, Adobe 29 Vulnerabilities
blogs_qualys·2021-08-10·CVSS 7.0
CVE-2021-36942 [HIGH] Microsoft and Adobe Patch Tuesday (August 2021) – Microsoft 51 Vulnerabilities with 7 Critical, Adobe 29 Vulnerabilities
## Microsoft Patch Tuesday – August 2021
Microsoft patched 51 vulnerabilities in their August 2021 Patch Tuesday release, and 7 of them are rated as critical severity. Three 0-day vulnerability patches were included in the release.
## Critical Microsoft Vulnerabilities Patched
CVE-2021-36942 – Windows LSA Spoofing Vulnerability
An unauthenticated attacker could call a method on the LSARPC interface and coerce the domain controller to authenticate against another server using NTLM. A malicious user can use this attack to take complete control over windows domain Per Microsoft, this vulnerability affects all servers, but domain controllers should be prioritized in terms of applying security updates.
CVE-2021-34481 – Windows Print Spooler Remote Code Execution Vulnerability
A remote cod
Crowdstrike
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Crowdstrike
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blogs_crowdstrike·CVSS 7.5
CVE-2026-20929 [HIGH] August 2021 Patch Tuesday: Updates and Analysis
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2021-08-12
Published
2022-03-28
Added to CISA KEV
Exploited in the wild