Microsoft Exchange Server Remote Code Execution Vulnerability
Critical CVSS 9.1 Listed in CISA KEV
Summary
Microsoft Exchange Server contains an unspecified vulnerability that allows for remote code execution. This vulnerability is part of the ProxyLogon exploit chain.
In-depth triage · Auto channel
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- Microsoft:Exchange Server
- :
Sources
- CISA KEV DATABASE
- NVD DATABASE
Original Links
- https://nvd.nist.gov/vuln/detail/CVE-2021-26855 advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog kev
- http://packetstormsecurity.com/files/161846/Microsoft-Exchange-2019-SSRF-Arbitrary-File-Write.html Exploit
- http://packetstormsecurity.com/files/161938/Microsoft-Exchange-ProxyLogon-Remote-Code-Execution.html Exploit
- http://packetstormsecurity.com/files/162610/Microsoft-Exchange-2019-Unauthenticated-Email-Download.html Exploit
- http://packetstormsecurity.com/files/162736/Microsoft-Exchange-ProxyLogon-Collector.html Exploit
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26855 Patch
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26855 US Government Resource
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26855 Patch
Timeline
- kev_added CISA KEV
- kev_ingest CISA KEV
- nvd_ingest NVD