CVE catalog

CVE-2026-33112

Deserialization of untrusted data in Microsoft Office…

[CVE catalog]

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Severity
High · CVSS 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
Source
[NVD] · [CVE record]
EPSS
31.12% · Oct 27, 2026

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence
Original provider fields
{
  "package_releases": [],
  "fixed_versions": [],
  "distribution_packages": [
    {
      "name": "sharepoint_server",
      "ecosystem": "cpe",
      "fixed_version": "16.0.19725.20280"
    },
    {
      "name": "sharepoint_server",
      "ecosystem": "cpe",
      "fixed_version": ""
    },
    {
      "name": "sharepoint_server",
      "ranges": [],
      "ecosystem": "cpe",
      "fixed_version": "",
      "provider_record_id": "NVD-CVE-2026-33112"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

Observed:

References

[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)]