CVE-2021-41349

high-risk
Published 2021-11-10

Microsoft Exchange Server Spoofing Vulnerability

Do I need to act?

!
91.1% chance of exploitation in next 30 days
EPSS score — higher than 9% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
NETWORK / LOW complexity

Affected Products (5)

Affected Vendors

Microsoft

References (2)

Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4134...
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4134...
56
/ 100
high-risk
Severity 24/34 · High
Exploitability 20/34 · Moderate
Exposure 12/34 · Low