High severity · published Oct 13, 2026
CVE-2026-105013
Microsoft Office SharePoint Remote Code Execution Vulnerability
7.4
CVSS
1%
EPSS
No
On KEV
Description
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SH
SharePoint · Microsoft
before 16.0.20326.20190 · source: NVD
MS
Microsoft SharePoint Server Subscription Edition · Microsoft
16.0.0 before 16.0.20326.20190 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-105013
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-105013
vendor-advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105013
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