Vulnerability details
CVE-2025-49706
Actively exploited
Microsoft SharePoint Enterprise ServerMicrosoft SharePoint Server
Microsoft SharePoint Server Spoofing Vulnerability
CVSS 3.1
6.5Medium
Remedy
Required action (CISA): Disconnect public-facing versions of SharePoint Server that have reached their end-of-life (EOL) or end-of-service (EOS) to include SharePoint Server 2013 and earlier versions. For supported versions, please follow the mitigations according to CISA (URL listed below in Notes) and vendor instructions (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available. (due: 2025-07-23)
Versions not listed as affected in the CVE record:
- Microsoft SharePoint Enterprise Server 2016 — version 16.0.5508.1000 and later
- Microsoft SharePoint Server 2019 — version 16.0.10417.20027 and later
- Microsoft SharePoint Server Subscription Edition — version 16.0.18526.20424 and later
Official description
Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 6.5Medium | 3.1 | CVEProject cvelistV5 (CNA) (microsoft) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:F/RL:O/RC:C |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 ≤ v < 16.0.5508.1000 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 ≤ v < 16.0.10417.20027 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 ≤ v < 16.0.18526.20424 | CVEProject cvelistV5 (CNA) |
References and advisories
3- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49706 vendor-advisorypatch
- https://www.microsoft.com/en-us/security/blog/2025/07/22/disrupting-active-exploitation-of-on-premises-sharepoint-vulnerabilities/ vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-49706 government-resource
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Details
- Published
- 2025-07-08
- Last updated
- 2026-08-04
- State
- Published
- Assigner (CNA)
- microsoft
- Kolun priority
- 85 · Critical
CISA KEV catalog
- Date added
- 2025-07-22
- Due date
- 2025-07-23
- Used in ransomware
- Yes
Exploit prediction (EPSS)
99.86%
Probability of exploitation in 30 days
99.9%
Percentile (among all CVEs)
- 2026-11-1199.86%
- 2026-11-0399.05%
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Active
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-287Improper Authentication