Microsoft Office Outlook Privilege Escalation Vulnerability

Summary

CVECVE-2023-23397
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-03-14 17:15:00 UTC
Updated2023-03-20 14:00:00 UTC
DescriptionMicrosoft Outlook Elevation of Privilege Vulnerability

Risk And Classification

EPSS: 0.935600000 probability, percentile 0.998330000 (date 2026-04-22)

CISA KEV: Listed on 2023-03-14; due 2023-04-04; ransomware use Unknown

Problem Types: CWE-294

CISA Known Exploited Vulnerability

VendorMicrosoft
ProductOffice
NameMicrosoft Office Outlook Privilege Escalation Vulnerability
Required ActionApply updates per vendor instructions.
Noteshttps://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-23397, https://msrc.microsoft.com/blog/2023/03/microsoft-mitigates-outlook-elevation-of-privilege-vulnerability/, ; https://nvd.nist.gov/vuln/detail/CVE-2023-23397

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Microsoft 365 Apps - All All All
Application Microsoft Office 2019 All All All
Application Microsoft Office 2021 All All All
Application Microsoft Outlook 2013 sp1 All All
Application Microsoft Outlook 2013 sp1 All All
Application Microsoft Outlook 2016 All All All

References

ReferenceSourceLinkTags
Security Update Guide - Microsoft Security Response Center MISC msrc.microsoft.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

Legacy QID Mappings

  • 110428 Microsoft Outlook Elevation of Privilege Vulnerability for March 2023
  • 110430 Microsoft Office Security Update for March 2023
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