7.8

CVE-2020-1155: microsoft windows_10

CVSS: 7.8v3.1HighModified
Published 21-05-2020Last modified 19-08-2026
Open JSON

Vulnerability summary

CVE-2020-1155 is a high (CVSS 7.8) vulnerability in microsoft windows_10. EPSS estimates a 2.58% chance of exploitation in the next 30 days, higher than 85% of scored vulnerabilities.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
2.58%
0%100%
Low · +0.08 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

An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The update addresses the vulnerability by correcting the way the Windows Runtime handles objects in memory.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

2.58%

Chance of exploitation in the next 30 days

Percentile

85%

Versus all other CVEs

30-day change

+0.08 pp

From 2.50% on 22-09-2026

22-09-202622-10-2026
EPSS score
2.58%

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

No weakness data has been published for this record.

Affected systems

Microsoft15 products

1 vendor · 15 products

References

2 links