CVE-2021-33768
Microsoft Exchange Server Elevation of Privilege Vulnerability
HIGH
8
CVSS Score
Published: July 14, 2021 at 05:53 PM UTC
Updated: August 10, 2026 at 04:17 PM UTC
1 product affected across 1 vendorExchange Server
Using Microsoft Exchange Server 2019 Cumulative Update 9 by Microsoft?
Get instant alerts when new vulnerabilities affect Microsoft Exchange Server 2019 Cumulative Update 9 - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
HIGH8
Exploit prediction
EPSS 1%
Description
Microsoft Exchange Server Elevation of Privilege Vulnerability
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
15.01.0 ≤ v < 15.01.2242.01215.01.0 ≤ v < 15.01.2308.01415.02.0 ≤ v < 15.02.0858.01515.02.0 ≤ v < 15.02.0922.01315.01.015.02.02016 cumulative_update_202016 cumulative_update_212019 cumulative_update_102019 cumulative_update_9
Affected range stops below 15.01.2242.012, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.01.2308.014, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.02.0858.015, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.02.0922.013, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (2)
PatchVendor Advisory
Source: [email protected]
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33768Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33768CVSS
8HIGHmicrosoft
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card