7.7

CVE-2021-1691: microsoft windows_10

CVSS: 7.7v3.1HighModified
Published 12-01-2021Last modified 19-11-2024
Open JSON

Vulnerability summary

CVE-2021-1691 is a high (CVSS 7.7) vulnerability in microsoft windows_10. EPSS estimates a 4.07% chance of exploitation in the next 30 days, higher than 90.5% of scored vulnerabilities.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.7/10
010
High · v3.1 (CVE.org)
EPSS score
4.07%
0%100%
Low · +0.30 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 12-01-2021
    PublishedVulnerability first disclosed.
  2. 19-11-2024
    Last modifiedVulnerability information updated.

Description

Windows Hyper-V Denial of Service Vulnerability

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

4.07%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

+0.30 pp

From 3.77% on 20-09-2026

20-09-202620-10-2026
EPSS score
4.07%

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

Microsoft7 products

1 vendor · 7 products

References

2 links