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CVE

CVE-2021-42305

Microsoft Exchange Server Spoofing Vulnerability

Microsoft Exchange Server Spoofing Vulnerability.

MEDIUM · CVSS 6.5 EPSS 0.2433
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  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 4% of all CVEs by exploitation likelihood
Sigma rules0 YARA rules0
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Affected Products & Versions

1
microsoft exchange serverall versions
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Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Nov 2021 · 01:19 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
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Vendor Advisories

1
msrcCVE-2021-42305Spoofing
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42305PatchVendor Advisory
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