What is CVE-2024-49064?

CVE-2024-49064 is a medium-severity vulnerability in Microsoft Sharepoint Enterprise Server 2016, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2024-12-12.

How severe is CVE-2024-49064?

Medium severity. CVSS v3 base score is 6.5 out of 10.

XXE in Microsoft Sharepoint Enterprise Server 2016

CVE-2024-49064

Microsoft SharePoint Information Disclosure Vulnerability

Vulnerability class: XXE (XML External Entity)

Published 2024-12-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.025 (84.4th percentile), scored 2026-10-04.

Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.026 · newest: 0.025 · change: -0.001

Affected products

Microsoft Sharepoint Enterprise Server 2016 — versions 16.0.0
Microsoft Sharepoint Server 2019 — versions 16.0.0
Microsoft Sharepoint Server Subscription Edition — versions 16.0.0
Microsoft Sharepoint Server — versions 2016, 2019

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49064 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2024-49064?: CVE-2024-49064 is a medium-severity vulnerability in Microsoft Sharepoint Enterprise Server 2016, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2024-12-12.
How severe is CVE-2024-49064?: Medium severity. CVSS v3 base score is 6.5 out of 10.