AETERNAE AI RESEARCH LLC INDEPENDENT RESEARCH
ÆAETERNAERESEARCH
Sign inRequest access
← CVE index
Δ / VULNERABILITY RECORD

CVE-2026-63520.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSHIGH / 8.1No severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Aug 11, 2026

Disclosure summary

Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.

Source-reported weakness categories

CWE-20

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

VulnCheck Blog · RSS-dc77f70d96e38d2e02192fdf301144e9e3c

Open original source · Updated Aug 23, 2026

Exploiting SharePoint: CVE-2026-55040 and CVE-2026-63520 RCE Chain

CVE mention in publisher metadata; check the original affected versions.

Cyber Exposure Alerts · RSS-bccb1ecbd3b964467d9c89a15b4b8a1a5b8

Open original source · Updated Aug 11, 2026

Microsoft's August 2026 Patch Tuesday addresses 398 CVEs (CVE-2026-68820)

CVE mention in publisher metadata; check the original affected versions.

Microsoft Security Updates (CVRF) · 2026-Aug

Open original source · Updated Aug 11, 2026

Microsoft SharePoint Server Remote Code Execution Vulnerability

Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.

Microsoft maximum product score: 8.1

VendorProduct / associationVersion / bounds
Microsoft update guideMicrosoft SharePoint Enterprise Server 2016 (MSRC status code 3)
Microsoft update guideMicrosoft SharePoint Server 2019 (MSRC status code 3)
Microsoft update guideMicrosoft SharePoint Server Subscription Edition (MSRC status code 3)

Vendor remediation references

Original records & references

PUBLISHED 2026-08-11T03:00:00-04:00
MODIFIED 2026-08-11T03:00:00-04:00
INGESTED 2026-10-08T12:40:36-04:00