CVE-2021-34478

CVE-2021-34478

High · published August 12, 2021

Patch now

High probability of exploitation

CVSS calls it high at 7.8. It sits in the 98.9th percentile for exploit probability.

CVSS v3.1
7.8
EPSS
52%
Percentile
98.9
In the wild
Unconfirmed
What it is

Microsoft Office Remote Code Execution Vulnerability

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.51524 · 98.9th percentile
Published
2021-08-12T22:15Z
Affected products (2)
ProductVersionsFixed in
microsoft/365_appsall versions—
microsoft/officeall versions—
References (3)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34478 · [email protected]https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34478 · af854a3a-2127-422b-91ae-364da2661108https://www.zerodayinitiative.com/advisories/ZDI-21-1024/ · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 12 AUG 18:11Z
    Microsoft Office Remote Code Execution Vulnerability
    cvelistv5