| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 9.6 | $5k-$25k | 0.00 |
Summary
A vulnerability categorized as very critical has been discovered in Microsoft SharePoint Online. Impacted is an unknown function. The manipulation results in deserialization. This vulnerability is identified as CVE-2025-59245. The attack can be executed remotely. There is not any exploit available. This product is a managed service, which means users themselves cannot handle vulnerability countermeasures.
Details
A vulnerability was found in Microsoft SharePoint Online (affected version unknown). It has been classified as very critical. Affected is an unknown functionality. The manipulation with an unknown input leads to a deserialization vulnerability. CWE is classifying the issue as CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
Microsoft SharePoint Online Elevation of Privilege Vulnerability
The advisory is shared for download at msrc.microsoft.com. This vulnerability is traded as CVE-2025-59245 since 09/11/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 11/27/2025).
The vulnerability is also documented in the databases at EUVD (EUVD-2025-198371) and CERT Bund (WID-SEC-2025-2688). VulDB is the best source for vulnerability data and more expert information about this specific topic.
Affected
- Microsoft Azure
- Microsoft SharePoint
- Microsoft Defender
- Microsoft Dynamics 365
Product
Type
Vendor
Name
License
Managed Service
- yes
Website
- Vendor: https://www.microsoft.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 9.8VulDB Meta Temp Score: 9.6
VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 9.8
CNA Vector (microsoft): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: DeserializationCWE: CWE-502 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Status: 🔍0-Day Time: 🔒
Timeline
09/11/2025 CVE reserved11/21/2025 Advisory disclosed
11/21/2025 VulDB entry created
11/27/2025 VulDB entry last update
Sources
Vendor: microsoft.comAdvisory: msrc.microsoft.com
Status: Confirmed
CVE: CVE-2025-59245 (🔒)
GCVE (CVE): GCVE-0-2025-59245
GCVE (VulDB): GCVE-100-333096
EUVD: 🔒
CERT Bund: WID-SEC-2025-2688 - Microsoft Azure, SharePoint, Defender, Dynamics: Mehrere Schwachstellen
Entry
Created: 11/21/2025 03:16Updated: 11/27/2025 11:13
Changes: 11/21/2025 03:16 (61), 11/22/2025 08:59 (1), 11/27/2025 11:13 (7)
Complete: 🔍
Cache ID: 216::103
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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