CVE-2025-49706

Microsoft SharePoint Improper Authentication Vulnerability — Microsoft / SharePoint

Risk tier: Critical — known ransomware use

Description

Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

Scoring

  • CVSS: 6.5 (MEDIUM, 3.1)
  • EPSS exploitation probability: Not yet available
  • EPSS percentile: Not yet available

CISA KEV status

  • Added to KEV: 2025-07-22
  • Remediation due date: 2025-07-23
  • Known ransomware campaign use: Known

Weakness types (CWE)

  • CWE-287

References

More MEDIUM-severity vulnerabilities · All exploited vulnerabilities