CVE-2021-34520CWE-502insecure-deserialization

CVE-2021-34520

High · published July 14, 2021

CVSS v3.1
8.1
EPSS
4%
Percentile
91.3
In the wild
Unconfirmed
What it is

Microsoft SharePoint Server Remote Code Execution Vulnerability

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.04425 · 91.3th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2021-07-14T22:15Z
Affected products (3)
ProductVersionsFixed in
microsoft/sharepoint_foundationall versions—
microsoft/sharepoint_serverall versions—
microsoft/sharepoint_serverall versions—
References (3)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34520 · [email protected]https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34520 · af854a3a-2127-422b-91ae-364da2661108https://www.zerodayinitiative.com/advisories/ZDI-21-828/ · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 14 JUL 17:54Z
    Microsoft SharePoint Server Remote Code Execution Vulnerability
    cvelistv5