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CVE-2026-48562 Microsoft CVE debrief

CVE-2026-48562 is a MEDIUM severity vulnerability in Microsoft Office SharePoint, with a CVSS score of 4.6. The vulnerability is caused by improper neutralization of input during web page generation, allowing an authorized attacker to perform spoofing over a network. The vulnerability was published on [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-48562) and details can be found on [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-48562).

Vendor
Microsoft
Product
Microsoft SharePoint Enterprise Server 2016
CVSS
MEDIUM 4.6
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-12
Advisory published
2026-06-09
Advisory updated
2026-06-12

Who should care

Users of Microsoft Office SharePoint Server, particularly those with administrative privileges, should be aware of this vulnerability and take necessary precautions.

Technical summary

The vulnerability is caused by improper neutralization of input during web page generation, allowing an authorized attacker to perform spoofing over a network. The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.

Defensive priority

MEDIUM

Recommended defensive actions

  • Apply patches or updates provided by Microsoft to vulnerable systems.
  • Restrict access to SharePoint Server to authorized users only.
  • Monitor SharePoint Server logs for suspicious activity.

Evidence notes

The vulnerability is described in [ref-4](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48562), a vendor advisory from Microsoft.

Official resources

CVE-2026-48562 was published on 2026-06-09T17:17:44.760Z and modified on 2026-06-12T15:38:34.967Z.