CVE-2021-34481
highPriorität · beachten · 57EPSS 0.477 · 99. PerzentilExploit · PoCEURUUSEPSS · bewertet 2026-10-22
A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. UPDATE August 10, 2021: Microsoft has completed the investigation and has released security updates to address this vulnerability. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. This security update changes the Point and Print default behavior; please see KB5005652.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- BehobenWindows 10 Version 1607 for 32-bit Systemsmsrc_csaf
10.0.14393.4583:Security Update:https://support.microsoft.com/help/5005043
https://support.microsoft.com/help/5005043 - BehobenWindows 10 Version 1607 for x64-based Systemsmsrc_csaf
10.0.14393.4583:Security Update:https://support.microsoft.com/help/5005043
https://support.microsoft.com/help/5005043 - BehobenWindows 10 Version 1809 for 32-bit Systemsmsrc_csaf
10.0.17763.2114:Security Update:https://support.microsoft.com/help/5005030
https://support.microsoft.com/help/5005030 - BehobenWindows 10 Version 1809 for ARM64-based Systemsmsrc_csaf
10.0.17763.2114:Security Update:https://support.microsoft.com/help/5005030
https://support.microsoft.com/help/5005030 - BehobenWindows 10 Version 1809 for x64-based Systemsmsrc_csaf
10.0.17763.2114:Security Update:https://support.microsoft.com/help/5005030
https://support.microsoft.com/help/5005030 - BehobenWindows 10 Version 1909 for 32-bit Systemsmsrc_csaf
10.0.18363.1734:Security Update:https://support.microsoft.com/help/5005031
https://support.microsoft.com/help/5005031 - BehobenWindows 10 Version 1909 for ARM64-based Systemsmsrc_csaf
10.0.18363.1734:Security Update:https://support.microsoft.com/help/5005031
https://support.microsoft.com/help/5005031 - BehobenWindows 10 Version 1909 for x64-based Systemsmsrc_csaf
10.0.18363.1734:Security Update:https://support.microsoft.com/help/5005031
https://support.microsoft.com/help/5005031 - BehobenWindows 10 Version 2004 for 32-bit Systemsmsrc_csaf
10.0.19041.1165:Security Update:https://support.microsoft.com/help/5005033
https://support.microsoft.com/help/5005033 - BehobenWindows 10 Version 2004 for ARM64-based Systemsmsrc_csaf
10.0.19041.1165:Security Update:https://support.microsoft.com/help/5005033
https://support.microsoft.com/help/5005033 - BehobenWindows 10 Version 2004 for x64-based Systemsmsrc_csaf
10.0.19041.1165:Security Update:https://support.microsoft.com/help/5005033
https://support.microsoft.com/help/5005033 - BehobenWindows 10 Version 20H2 for 32-bit Systemsmsrc_csaf
10.0.19042.1165:Security Update:https://support.microsoft.com/help/5005033
https://support.microsoft.com/help/5005033 - BehobenWindows 10 Version 20H2 for ARM64-based Systemsmsrc_csaf
10.0.19042.1165:Security Update:https://support.microsoft.com/help/5005033
https://support.microsoft.com/help/5005033 - BehobenWindows 10 Version 21H1 for 32-bit Systemsmsrc_csaf
10.0.19043.1165:Security Update:https://support.microsoft.com/help/5005033
https://support.microsoft.com/help/5005033 - BehobenWindows 10 Version 21H1 for ARM64-based Systemsmsrc_csaf
10.0.19043.1165:Security Update:https://support.microsoft.com/help/5005033
https://support.microsoft.com/help/5005033 - BehobenWindows 10 Version 21H1 for x64-based Systemsmsrc_csaf
10.0.19043.1165:Security Update:https://support.microsoft.com/help/5005033
https://support.microsoft.com/help/5005033 - BehobenWindows 10 for 32-bit Systemsmsrc_csaf
10.0.10240.19022:Security Update:https://support.microsoft.com/help/5005040
https://support.microsoft.com/help/5005040 - BehobenWindows 10 for x64-based Systemsmsrc_csaf
10.0.10240.19022:Security Update:https://support.microsoft.com/help/5005040
https://support.microsoft.com/help/5005040 - BehobenWindows 7 for 32-bit Systems Service Pack 1msrc_csaf
6.1.7601.25685:Monthly Rollup:https://support.microsoft.com/help/5005088
https://support.microsoft.com/help/5005088 - BehobenWindows 7 for x64-based Systems Service Pack 1msrc_csaf
6.1.7601.25685:Monthly Rollup:https://support.microsoft.com/help/5005088
https://support.microsoft.com/help/5005088 - BehobenWindows 8.1 for 32-bit systemsmsrc_csaf
6.3.9600.20094:Monthly Rollup:https://support.microsoft.com/help/5005076
https://support.microsoft.com/help/5005076 - BehobenWindows 8.1 for x64-based systemsmsrc_csaf
6.3.9600.20094:Monthly Rollup:https://support.microsoft.com/help/5005076
https://support.microsoft.com/help/5005076 - BehobenWindows RT 8.1msrc_csaf
6.3.9600.20094:Monthly Rollup:https://support.microsoft.com/help/5005076
https://support.microsoft.com/help/5005076 - BehobenWindows Server 2008 R2 for x64-based Systems Service Pack 1msrc_csaf
6.1.7601.25685:Monthly Rollup:https://support.microsoft.com/help/5005088
https://support.microsoft.com/help/5005088 - BehobenWindows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)msrc_csaf
6.1.7601.25685:Monthly Rollup:https://support.microsoft.com/help/5005088
https://support.microsoft.com/help/5005088 - BehobenWindows Server 2008 for 32-bit Systems Service Pack 2msrc_csaf
6.0.6003.21192:Monthly Rollup:https://support.microsoft.com/help/5005090
https://support.microsoft.com/help/5005090 - BehobenWindows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)msrc_csaf
6.0.6003.21192:Monthly Rollup:https://support.microsoft.com/help/5005090
https://support.microsoft.com/help/5005090 - BehobenWindows Server 2008 for x64-based Systems Service Pack 2msrc_csaf
6.0.6003.21192:Monthly Rollup:https://support.microsoft.com/help/5005090
https://support.microsoft.com/help/5005090 - BehobenWindows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)msrc_csaf
6.0.6003.21192:Monthly Rollup:https://support.microsoft.com/help/5005090
https://support.microsoft.com/help/5005090 - BehobenWindows Server 2012msrc_csaf
6.2.9200.23435:Security Only:https://support.microsoft.com/help/5005094
https://support.microsoft.com/help/5005094 - BehobenWindows Server 2012 (Server Core installation)msrc_csaf
6.2.9200.23435:Security Only:https://support.microsoft.com/help/5005094
https://support.microsoft.com/help/5005094 - BehobenWindows Server 2012 R2msrc_csaf
6.3.9600.20094:Monthly Rollup:https://support.microsoft.com/help/5005076
https://support.microsoft.com/help/5005076 - BehobenWindows Server 2012 R2 (Server Core installation)msrc_csaf
6.3.9600.20094:Monthly Rollup:https://support.microsoft.com/help/5005076
https://support.microsoft.com/help/5005076 - BehobenWindows Server 2016msrc_csaf
10.0.14393.4583:Security Update:https://support.microsoft.com/help/5005043
https://support.microsoft.com/help/5005043 - BehobenWindows Server 2016 (Server Core installation)msrc_csaf
10.0.14393.4583:Security Update:https://support.microsoft.com/help/5005043
https://support.microsoft.com/help/5005043 - BehobenWindows Server 2019msrc_csaf
10.0.17763.2114:Security Update:https://support.microsoft.com/help/5005030
https://support.microsoft.com/help/5005030 - BehobenWindows Server 2019 (Server Core installation)msrc_csaf
10.0.17763.2114:Security Update:https://support.microsoft.com/help/5005030
https://support.microsoft.com/help/5005030 - BehobenWindows Server, version 2004 (Server Core installation)msrc_csaf
10.0.19041.1165:Security Update:https://support.microsoft.com/help/5005033
https://support.microsoft.com/help/5005033 - BehobenWindows Server, version 20H2 (Server Core Installation)msrc_csaf
10.0.19042.1165:Security Update:https://support.microsoft.com/help/5005033
https://support.microsoft.com/help/5005033
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · high–critical · 7.5–9.8
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
Exploits (1)
Öffentlicher Proof-of-Concept- und Exploit-Code.
- vpn28/CVE-2021-34481Check patch for CVE-2021-34481PoC · poc_in_github
betroffene Produkte (147)
Betroffene Produkte und Versionsbereiche.
- Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)6.1.7601.0 → 6.1.7601.25685enisa_euvdEU
- Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)6.0.6003.0 → 6.0.6003.21192enisa_euvdEU
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- msrc_CVE-2021-34481Windows Print Spooler Remote Code Execution Vulnerability2021-07-15csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
auch bekannt als (4)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (8)
Externe Belege — Patches, Meldungen, Analysen.
- https://msrc.microsoft.comPatchcnnvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34481cnnvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34481cnnvd
- https://vigilance.fr/vulnerability/Windows-privilege-escalation-via-Print-Spooler-35917cnnvd
- https://www.cybersecurity-help.cz/vdb/SB2021071602cnnvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34481enisa_euvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34481nvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34481PatchVendor Advisorynvd
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