Vulnerability Details : CVE-2021-42309
Microsoft SharePoint Server Remote Code Execution Vulnerability
Vulnerability category: Execute code
Products affected by CVE-2021-42309
- cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:sharepoint_server:-:*:*:*:subscription:*:*:*
- cpe:2.3:a:microsoft:sharepoint_foundation:2013:sp1:*:*:*:*:*:*
- cpe:2.3:a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-42309
0.52%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 64 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-42309
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
Microsoft Corporation |
CWE ids for CVE-2021-42309
-
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.Assigned by: nvd@nist.gov (Primary)
-
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-42309
-
https://www.zerodayinitiative.com/advisories/ZDI-22-074/
ZDI-22-074 | Zero Day InitiativeThird Party Advisory;VDB Entry
-
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42309
CVE-2021-42309 - Security Update Guide - Microsoft - Microsoft SharePoint Server Remote Code Execution VulnerabilityPatch;Vendor Advisory
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