CVE-2023-23397
criticalpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.972 · 100 %ileexploit · PoCEURUUSadded 2023-03-14remediate by 2023-04-04
required action Apply updates per vendor instructions.
EPSS · scored 2026-10-24
Microsoft Office Outlook Privilege Escalation Vulnerability
Microsoft Outlook Elevation of Privilege Vulnerability
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedMicrosoft 365 Apps for Enterprise for 32-bit Systemsmsrc_csaf
https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft 365 Apps for Enterprise for 64-bit Systemsmsrc_csaf
https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Office 2019 for 32-bit editionsmsrc_csaf
https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Office 2019 for 64-bit editionsmsrc_csaf
https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Office LTSC 2021 for 32-bit editionsmsrc_csaf
https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Office LTSC 2021 for 64-bit editionsmsrc_csaf
https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Outlook 2013 RT Service Pack 1msrc_csaf
15.0.5537.1000:Security Update:https://support.microsoft.com/help/5002265
https://support.microsoft.com/help/5002265 - FixedMicrosoft Outlook 2013 Service Pack 1 (32-bit editions)msrc_csaf
15.0.5537.1000:Security Update:https://support.microsoft.com/help/5002265
https://support.microsoft.com/help/5002265 - FixedMicrosoft Outlook 2013 Service Pack 1 (64-bit editions)msrc_csaf
15.0.5537.1000:Security Update:https://support.microsoft.com/help/5002265
https://support.microsoft.com/help/5002265 - FixedMicrosoft Outlook 2016 (32-bit edition)msrc_csaf
16.0.5387.1000:Security Update:https://support.microsoft.com/help/5002254
https://support.microsoft.com/help/5002254 - FixedMicrosoft Outlook 2016 (64-bit edition)msrc_csaf
16.0.5387.1000:Security Update:https://support.microsoft.com/help/5002254
https://support.microsoft.com/help/5002254
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
ATT&CK techniques
ATT&CK techniques this enables or maps to.
exploits (29)
Public proof-of-concept and weaponised exploit code.
- P4x1s/CVE-2023-23397-POCCVE-2023-23397漏洞的简单PoC，有效载荷通过电子邮件发送。PoC · poc_in_github
affected products (38)
Products and version ranges known to be affected.
- Microsoft Microsoft 365 Apps for Enterprise16.0.1 → https://aka.ms/OfficeSecurityReleasesenisa_euvdEU
- Microsoft 365 Apps for Enterprise for 32-bit Systems< https://aka.ms/OfficeSecurityReleasesmsrc_csafUS
- Microsoft 365 Apps for Enterprise for 64-bit Systems< https://aka.ms/OfficeSecurityReleasesmsrc_csafUS
advisories (1)
Vendor and ecosystem advisories describing this.
- msrc_CVE-2023-23397Microsoft Outlook Elevation of Privilege Vulnerability2023-03-14csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-23397/cnnvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23397cnnvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23397enisa_euvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23397PatchVendor Advisorynvd
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-23397US Government Resourcenvd
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