CVE-2023-33151
Microsoft Outlook Spoofing Vulnerability
MEDIUM
6.5
CVSS Score
Published: July 11, 2023 at 05:02 PM UTC
Updated: June 17, 2026 at 06:01 AM UTC
6 products affected across 1 vendorOffice365 AppsOffice Long Term Servicing Channel
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Severity
MEDIUM6.5
Exploit prediction
EPSS 3%
SSVC
No known exploit
Description
Microsoft Outlook Spoofing Vulnerability
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
16.0.1 ≤ v < https://aka.ms/OfficeSecurityReleases16.0.1
Affected range stops below https://aka.ms/OfficeSecurityReleases, so it looks safe — our inference, not a vendor statement
Affected range stops below https://aka.ms/OfficeSecurityReleases, so it looks safe — our inference, not a vendor statement
16.0.1 ≤ v < https://aka.ms/OfficeSecurityReleases2021
Affected range stops below https://aka.ms/OfficeSecurityReleases, so it looks safe — our inference, not a vendor statement
14.0.0 ≤ v < 15.0.5571.100015.0.0.0 ≤ v < 15.0.5571.100016.0.0.0 ≤ v < 16.0.5404.100014.0.015.0.0.016.0.0.0
Affected range stops below 15.0.5571.1000, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.5404.1000, so it looks safe — our inference, not a vendor statement
19.0.0 ≤ v < https://aka.ms/OfficeSecurityReleases19.0.0
Affected range stops below https://aka.ms/OfficeSecurityReleases, so it looks safe — our inference, not a vendor statement
16.0.1 ≤ v < https://aka.ms/OfficeSecurityReleases16.0.1
Affected range stops below https://aka.ms/OfficeSecurityReleases, 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:
Patch and advisory references
References (1)
Vendor AdvisoryPatch
Source: [email protected]
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33151SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
6.5MEDIUMmicrosoft
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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