cve-2021-26855
Vulnerability from cvelistv5
Published
2021-03-02 23:55
Modified
2024-08-03 20:33
Severity ?
EPSS score ?
Summary
Microsoft Exchange Server Remote Code Execution Vulnerability
References
| ▼ | URL | Tags | |
|---|---|---|---|
| secure@microsoft.com | http://packetstormsecurity.com/files/161846/Microsoft-Exchange-2019-SSRF-Arbitrary-File-Write.html | Exploit, Third Party Advisory, VDB Entry | |
| secure@microsoft.com | http://packetstormsecurity.com/files/161938/Microsoft-Exchange-ProxyLogon-Remote-Code-Execution.html | Exploit, Third Party Advisory, VDB Entry | |
| secure@microsoft.com | http://packetstormsecurity.com/files/162610/Microsoft-Exchange-2019-Unauthenticated-Email-Download.html | Exploit, Third Party Advisory, VDB Entry | |
| secure@microsoft.com | http://packetstormsecurity.com/files/162736/Microsoft-Exchange-ProxyLogon-Collector.html | Exploit, Third Party Advisory, VDB Entry | |
| secure@microsoft.com | https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26855 | Patch, Vendor Advisory |
Impacted products
CISA Known exploited vulnerability
Data from the Known Exploited Vulnerabilities Catalog
Date added: 2021-11-03
Due date: 2021-04-16
Required action: Apply updates per vendor instructions.
Used in ransomware: Known
Notes: Reference CISA's ED 21-02 (https://www.cisa.gov/news-events/directives/ed-21-02-mitigate-microsoft-exchange-premises-product-vulnerabilities) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 21-02. https://nvd.nist.gov/vuln/detail/CVE-2021-26855
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Este ID de CVE es diferente de CVE-2021-26412, CVE-2021-26854, CVE-2021-26857, CVE-2021-26858, CVE-2021-27065, 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Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://packetstormsecurity.com/files/161938/Microsoft-Exchange-ProxyLogon-Remote-Code-Execution.html\",\"source\":\"secure@microsoft.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://packetstormsecurity.com/files/162610/Microsoft-Exchange-2019-Unauthenticated-Email-Download.html\",\"source\":\"secure@microsoft.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://packetstormsecurity.com/files/162736/Microsoft-Exchange-ProxyLogon-Collector.html\",\"source\":\"secure@microsoft.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26855\",\"source\":\"secure@microsoft.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.