Critical severity · published Feb 13, 2024
CVE-2024-21413
Microsoft Outlook Remote Code Execution Vulnerability
In wildKEV
9.8
CVSS
94.7%
EPSS
Yes
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)94.7% · higher than 100% of CVEs
Exploited in the wildYes
CISA KEVListed Feb 6, 2025
Federal remediation dueFeb 27, 2025
Ransomware campaign useNot known
Affected products
Which versions
OF
Office · Microsoft
All versions, or not specified · source: NVD
M3
Microsoft 365 Apps for Enterprise · Microsoft
16.0.1 before https://aka.ms/OfficeSecurityReleases · source: vendor
MO
Microsoft Office 2016 · Microsoft
16.0.0 before 16.0.5435.1001 · source: vendor
MO
Microsoft Office 2019 · Microsoft
19.0.0 before https://aka.ms/OfficeSecurityReleases · source: vendor
MO
Microsoft Office LTSC 2021 · Microsoft
16.0.1 before https://aka.ms/OfficeSecurityReleases · source: vendor
O2
Office 2016 · Microsoft
All versions, or not specified · source: NVD
O2
Office 2019 · Microsoft
All versions, or not specified · source: NVD
OL
Office Long Term Servicing Channel · Microsoft
2021 · source: NVD
OO
Office Outlook · Microsoft
All versions, or not specified · source: KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-21413
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-21413
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
vendor-advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21413
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