VulnerabilityAnalyzed
CVE-2026-105013
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
HIGH 7.4EPSS 0.95%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.95%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- CVSS 3.1
- 7.4 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
- EPSS
- 0.95% probability · 61th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- microsoft/sharepoint server
- Source
- secure@microsoft.com
EPSS moved from 0.8% on 14 October 2026 to 1.0% on 26 October 2026.
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105013Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.