9.3

CVE-2020-1028: microsoft windows_10 Out-of-bounds Write

CVSS: 9.3v2.0HighModified
Published 21-05-2020Last modified 19-08-2026

Vulnerability summary

CVE-2020-1028 is a high (CVSS 9.3) Out-of-bounds Write vulnerability in microsoft windows_10. EPSS estimates a 3.91% chance of exploitation in the next 30 days, higher than 90.2% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.3/10
010
High · v2.0 (NVD)
EPSS score
3.91%
0%100%
Low · +0.13 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 21-05-2020
    PublishedVulnerability first disclosed.
  2. 19-08-2026
    Last modifiedVulnerability information updated.

Description

A memory corruption vulnerability exists when Windows Media Foundation improperly handles objects in memory. An attacker who successfully exploited the vulnerability could install programs; view, change, or delete data; or create new accounts with full user rights. There are multiple ways an attacker could exploit the vulnerability, such as by convincing a user to open a specially crafted document, or by convincing a user to visit a malicious webpage. The security update addresses the vulnerability by correcting how Windows Media Foundation handles objects in memory.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

3.91%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

+0.13 pp

From 3.78% on 21-09-2026

21-09-202621-10-2026
EPSS score
3.91%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft17 products

1 vendor · 17 products

References

2 links