CVE-2021-1730

Microsoft Exchange Server Spoofing Vulnerability

State
Published
Severity
5.4 Medium
Published
Feb 25, 2021
Updated
Aug 3, 2024
Reserved
Dec 2, 2020

Read the record on cve.org

Description

<p>A spoofing vulnerability exists in Microsoft Exchange Server which could result in an attack that would allow a malicious actor to impersonate the user.</p> <p>This update addresses this vulnerability.</p> <p>To prevent these types of attacks, Microsoft recommends customers to download inline images from different DNSdomains than the rest of OWA. Please see further instructions in the FAQ to put in place this mitigations.</p>

Scores

CVSSScoreVectorSource
3.15.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:Cmicrosoft

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
Microsoft Exchange Server 2019 Cumulative Update 7Microsoft
  • 15.02.0 to before publicationAffected
Microsoft Exchange Server 2016 Cumulative Update 18Microsoft
  • 15.01.0 to before publicationAffected

References

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