Security readout for executives and security teams
Plain-English summary
CVE-2024-49064 is a Microsoft SharePoint information disclosure issue. It can expose sensitive information if a user is tricked into interacting with malicious content. The available sources list official Microsoft remediation, but do not show active exploitation.
Executive priority
Treat this as a timely patching item, not a crisis. Confidentiality impact is high, but available evidence requires user interaction and does not show active exploitation.
Technical view
The vulnerability affects SharePoint Enterprise Server 2016, SharePoint Server 2019, and SharePoint Server Subscription Edition. It is mapped to CWE-611 and scored CVSS 6.5, with network attack vector, low complexity, no privileges required, user interaction required, and high confidentiality impact only.
Likely exposure
Organizations running affected on-premises SharePoint versions are the likely exposure set. Risk is higher where SharePoint users regularly interact with externally supplied or untrusted content.
Exploitation context
The source bundle does not list this CVE in CISA KEV and provides no cited evidence of active exploitation. The CVSS vector marks exploit maturity as unproven.
Researcher notes
Key traits are CWE-611, AV:N, AC:L, PR:N, UI:R, C:H, I:N, A:N. Avoid assuming unauthenticated data theft without user interaction; the provided evidence only supports information disclosure with official remediation available.
Mitigation direction
Apply the Microsoft security update referenced by the MSRC advisory.
Prioritize affected SharePoint farms with external access or sensitive content.
Review Microsoft guidance for prerequisites, supersedence, and deployment notes.
If patching is delayed, document business risk and compensating controls.
Validation and detection
Inventory SharePoint 2016, 2019, and Subscription Edition deployments.
Compare installed SharePoint build levels against Microsoft’s CVE guidance.
Confirm patch deployment through change records and asset scans.
Review exposure of SharePoint sites handling sensitive documents.
Track exceptions until all affected farms are remediated.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · low confidence lookup
CWE-611: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-611 · source CWE mapping
Improper Restriction of XML External Entity Reference
Improper Restriction of XML External Entity Reference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.