Known vulnerability record
CVE-2025-49706
Microsoft SharePoint Improper Authentication Vulnerability
Summary
Microsoft SharePoint Improper Authentication Vulnerability
Microsoft SharePoint contains an improper authentication vulnerability that allows an authorized attacker to perform spoofing over a network. Successfully exploitation could allow an attacker to view sensitive information and make some changes to disclosed information. This vulnerability could be chained with CVE-2025-49704. CVE-2025-53771 is a patch bypass for CVE-2025-49706, and the updates for CVE-2025-53771 include more robust protection than those for CVE-2025-49706.
Signals
Keep the signals separate
CVSS severitymediumScore 6.5 · source microsoft
EPSS probability99.9%Probability of exploitation in the next 30 days; not severity
CISA KEVKnown exploitedAdded 2025-07-22
Ransomware useknownPreserved as known / unknown, not a truthy default
Timeline
Dates and provenance
- CVE published
- 2025-07-08
- CVE modified
- 2026-08-04
- KEV date added
- 2025-07-22
- Dataset fetched
- 2026-08-21T03:55:04.101Z
Sources
Original records
- https://www.cve.org/CVERecord?id=CVE-2025-49706 ↗
- https://nvd.nist.gov/vuln/detail/CVE-2025-49706 ↗
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-49706 ↗
Version history: normalized permanent page created 2026-08-20. Machine-enriched fields remain source-attributed.