// For flags

CVE-2024-43466

Microsoft SharePoint Server Denial of Service Vulnerability

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

Microsoft SharePoint Server Denial of Service Vulnerability

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Microsoft SharePoint. Authentication is required to exploit this vulnerability.
The specific flaw exists within the SPAutoSerializingObject class. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

*Credits: Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-08-14 CVE Reserved
  • 2024-09-10 CVE Published
  • 2024-09-14 EPSS Updated
  • 2024-09-19 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-502: Deserialization of Untrusted Data
CAPEC
References (1)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Microsoft
Search vendor "Microsoft"
Microsoft SharePoint Enterprise Server 2016
Search vendor "Microsoft" for product "Microsoft SharePoint Enterprise Server 2016"
>= 16.0.0.0 < 16.0.5465.1001
Search vendor "Microsoft" for product "Microsoft SharePoint Enterprise Server 2016" and version " >= 16.0.0.0 < 16.0.5465.1001"
en
Affected
Microsoft
Search vendor "Microsoft"
Microsoft SharePoint Server 2019
Search vendor "Microsoft" for product "Microsoft SharePoint Server 2019"
>= 16.0.0.0 < 16.0.10414.20002
Search vendor "Microsoft" for product "Microsoft SharePoint Server 2019" and version " >= 16.0.0.0 < 16.0.10414.20002"
en
Affected
Microsoft
Search vendor "Microsoft"
Microsoft SharePoint Server Subscription Edition
Search vendor "Microsoft" for product "Microsoft SharePoint Server Subscription Edition"
>= 16.0.0.0 < 16.0.17928.20086
Search vendor "Microsoft" for product "Microsoft SharePoint Server Subscription Edition" and version " >= 16.0.0.0 < 16.0.17928.20086"
en
Affected