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CVE-2021-26855

CRITICALCISA KEV

9.1

Descricao

Microsoft Exchange Server Remote Code Execution Vulnerability

Detalhes CVE

Pontuacao CVSS v3.19.1

SeveridadeCRITICAL

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado3/3/2021

Ultima modificacao12/18/2025

Fontekev

Avistamentos honeypot0

CISA KEV

FornecedorMicrosoft

ProdutoExchange Server

Nome da vulnerabilidadeMicrosoft Exchange Server Remote Code Execution Vulnerability

Data inclusao KEV2021-11-03

Prazo de remediacao2022-05-03

Uso em ransomwareKnown

Produtos afetados

microsoft:exchange_server

Fraquezas (CWE)

CWE-918CWE-918

Referencias

http://packetstormsecurity.com/files/161846/Microsoft-Exchange-2019-SSRF-Arbitrary-File-Write.html(secure@microsoft.com)

http://packetstormsecurity.com/files/161938/Microsoft-Exchange-ProxyLogon-Remote-Code-Execution.html(secure@microsoft.com)

http://packetstormsecurity.com/files/162610/Microsoft-Exchange-2019-Unauthenticated-Email-Download.html(secure@microsoft.com)

http://packetstormsecurity.com/files/162736/Microsoft-Exchange-ProxyLogon-Collector.html(secure@microsoft.com)

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26855(secure@microsoft.com)

http://packetstormsecurity.com/files/161846/Microsoft-Exchange-2019-SSRF-Arbitrary-File-Write.html(af854a3a-2127-422b-91ae-364da2661108)

http://packetstormsecurity.com/files/161938/Microsoft-Exchange-ProxyLogon-Remote-Code-Execution.html(af854a3a-2127-422b-91ae-364da2661108)

http://packetstormsecurity.com/files/162610/Microsoft-Exchange-2019-Unauthenticated-Email-Download.html(af854a3a-2127-422b-91ae-364da2661108)

http://packetstormsecurity.com/files/162736/Microsoft-Exchange-ProxyLogon-Collector.html(af854a3a-2127-422b-91ae-364da2661108)

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26855(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26855(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlacoes IOC

Sem correlacoes registradas

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