Riskcovery

CVE-2021-26855

Microsoft Exchange Server Remote Code Execution Vulnerability

State
Published
Severity
9.1 Critical
Published
Mar 2, 2021
Updated
Aug 19, 2026
Reserved
Feb 8, 2021

Read the record on cve.org

Description

Microsoft Exchange Server Remote Code Execution Vulnerability

Scores

CVSSScoreVectorSource
3.19.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:F/RL:O/RC:Cmicrosoft

Weaknesses

  • CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

ProductVersions
Microsoft Exchange Server 2013 Cumulative Update 21Microsoft
  • 15.00.0 to before 15.00.1395.012Affected
Microsoft Exchange Server 2013 Cumulative Update 22Microsoft
  • 15.00.0 to before 15.00.1473.006Affected
Microsoft Exchange Server 2013 Cumulative Update 23Microsoft
  • 15.00.0 to before 15.00.1497.012Affected
Microsoft Exchange Server 2016 Cumulative Update 10Microsoft
  • 15.01.0 to before 15.01.1531.012Affected
Microsoft Exchange Server 2016 Cumulative Update 11Microsoft
  • 15.01.0 to before 15.01.1591.018Affected
Microsoft Exchange Server 2016 Cumulative Update 12Microsoft
  • 15.01.0 to before 15.01.1713.010Affected
Microsoft Exchange Server 2016 Cumulative Update 13Microsoft
  • 15.01.0 to before 15.01.1779.008Affected
Microsoft Exchange Server 2016 Cumulative Update 14Microsoft
  • 15.01.0 to before 15.01.1847.012Affected
Microsoft Exchange Server 2016 Cumulative Update 15Microsoft
  • 15.01.0 to before 15.01.1913.012Affected
Microsoft Exchange Server 2016 Cumulative Update 16Microsoft
  • 15.01.0 to before 15.01.1979.008Affected
Microsoft Exchange Server 2016 Cumulative Update 17Microsoft
  • 15.01.0 to before 15.01.2044.013Affected
Microsoft Exchange Server 2016 Cumulative Update 18Microsoft
  • 15.01.0 to before 15.01.2106.013Affected
Microsoft Exchange Server 2016 Cumulative Update 19Microsoft
  • 15.01.0 to before 15.01.2176.009Affected
Microsoft Exchange Server 2016 Cumulative Update 8Microsoft
  • 15.01.0 to before 15.01.1415.010Affected
Microsoft Exchange Server 2016 Cumulative Update 9Microsoft
  • 15.01.0 to before 15.01.1466.016Affected
Microsoft Exchange Server 2019Microsoft
  • 15.02.0 to before 15.02.0221.018Affected
Microsoft Exchange Server 2019 Cumulative Update 1Microsoft
  • 15.02.0 to before 15.01.1979.006Affected
Microsoft Exchange Server 2019 Cumulative Update 2Microsoft
  • 15.02.0 to before 15.02.0397.011Affected
Microsoft Exchange Server 2019 Cumulative Update 3Microsoft
  • 15.02.0 to before 15.02.0464.015Affected
Microsoft Exchange Server 2019 Cumulative Update 4Microsoft
  • 15.02.0 to before 15.02.0659.012Affected
Microsoft Exchange Server 2019 Cumulative Update 5Microsoft
  • 15.02.0 to before 15.02.0595.008Affected
Microsoft Exchange Server 2019 Cumulative Update 6Microsoft
  • 15.02.0 to before 15.02.0529.013Affected
Microsoft Exchange Server 2019 Cumulative Update 7Microsoft
  • 15.02.0 to before 15.02.0721.013Affected
Microsoft Exchange Server 2019 Cumulative Update 8Microsoft
  • 15.02.0 to before 15.02.0792.010Affected

References

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