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CVE-2021-34523

CRITICALCISA KEV

9.0

Descricao

Microsoft Exchange Server Elevation of Privilege Vulnerability

Detalhes CVE

Pontuacao CVSS v3.19.0

SeveridadeCRITICAL

Vetor CVSSCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Vetor de ataqueLOCAL

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado7/14/2021

Ultima modificacao10/30/2025

Fontekev

Avistamentos honeypot0

CISA KEV

FornecedorMicrosoft

ProdutoExchange Server

Nome da vulnerabilidadeMicrosoft Exchange Server Privilege Escalation Vulnerability

Data inclusao KEV2021-11-03

Prazo de remediacao2021-11-17

Uso em ransomwareKnown

Produtos afetados

microsoft:exchange_server

Referencias

http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html(secure@microsoft.com)

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34523(secure@microsoft.com)

https://www.zerodayinitiative.com/advisories/ZDI-21-822/(secure@microsoft.com)

http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html(af854a3a-2127-422b-91ae-364da2661108)

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34523(af854a3a-2127-422b-91ae-364da2661108)

https://www.zerodayinitiative.com/advisories/ZDI-21-822/(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-34523(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlacoes IOC

Sem correlacoes registradas

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