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01 Record

CVE-2021-41348

Microsoft Exchange Server Elevation of Privilege Vulnerability

HighPUBLISHEDCNA: microsoft
CNA base score8.0 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

02 Description

Microsoft Exchange Server Elevation of Privilege Vulnerability

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.58% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 47.8% of scored records. A rank, not a probability.
NVD base score
8.0 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-10-13 00:28Z5 YR AGO
Last updated
2024-08-04 03:08Z2 YR AGO
Reserved
2021-09-17
Assigning CNA
microsoft
Record state
PUBLISHED
Severity
High (CVSS 8.0)
CNA CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Weaknesses
  • CWE-269Improper Privilege ManagementClass
Data version
5.1
Document digest
8ece5cc7836f70b3d7ff5f82cb5925415f5d70b27513e64f0822a0ea60555a33

05 Affected products

VendorProductVersionsPlatforms
MicrosoftMicrosoft Exchange Server 2016 Cumulative Update 2115.01.0 to < 15.01.2308.015x64-based Systems
MicrosoftMicrosoft Exchange Server 2019 Cumulative Update 1015.02.0 to < 15.02.0922.014x64-based Systems
MicrosoftMicrosoft Exchange Server 2019 Cumulative Update 1115.02.0 to < 15.02.0986.009x64-based Systems
MicrosoftMicrosoft Exchange Server 2016 Cumulative Update 2215.0.0 to < 15.01.2375.012x64-based Systems

06 References