CVE-2021-26879

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

Windows NAT Denial of Service Vulnerability

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26879

Details

Source: MITRE

Published: 2021-03-11

Updated: 2021-03-13

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH

Tenable Plugins

View all (7 total)

IDNameProductFamilySeverity
147230KB5000807: Windows 10 March 2021 Security UpdateNessusWindows : Microsoft Bulletins
high
147229KB5000853: Windows 8.1 and Windows Server 2012 R2 March 2021 Security UpdateNessusWindows : Microsoft Bulletins
critical
147226KB5000802: Windows Security Update (March 2021)NessusWindows : Microsoft Bulletins
high
147224KB5000809: Windows 10 Version 1803 March 2021 Security UpdateNessusWindows : Microsoft Bulletins
high
147223KB5000822: Windows 10 Version 1809 and Windows Server 2019 March 2021 Security UpdateNessusWindows : Microsoft Bulletins
critical
147222KB5000803: Windows Security Update (March 2021)NessusWindows : Microsoft Bulletins
critical
147220KB5000808: Windows 10 Version 1909 March 2021 Security UpdateNessusWindows : Microsoft Bulletins
high