CVE-2021-26414

Name: CVE-2021-26414
Creator: NVD / NIST
Published: 2021-06-08T23:15:08.307+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 49.97%

Last modified Jun 17, 2026

CVE-2021-26414 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Windows DCOM Server Security Feature Bypass. EPSS estimates a 49.97% chance of exploitation in the next 30 days.

Description

Windows DCOM Server Security Feature Bypass

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

49.97%

98.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions	Update
Microsoft	Windows 10	All versions	—
Microsoft	Windows 10	20h2	—
Microsoft	Windows 10	21h1	—
Microsoft	Windows 10	21h2	—
Microsoft	Windows 10	1809	—
Microsoft	Windows 10	1909	—
Microsoft	Windows 10	2004	—
Microsoft	Windows 7	All versions	Sp1
Microsoft	Windows 8.1	All versions	—
Microsoft	Windows Rt 8.1	All versions	—
Microsoft	Windows Server	20h2	—
Microsoft	Windows Server	2004	—
Microsoft	Windows Server 2008	All versions	Sp2
Microsoft	Windows Server 2008	r2	Sp1
Microsoft	Windows Server 2012	All versions	—
Microsoft	Windows Server 2012	r2	—
Microsoft	Windows Server 2016	All versions	—
Microsoft	Windows Server 2019	All versions	—
Microsoft	Windows Server 2022	All versions	—

References

http://packetstormsecurity.com/files/163206/Windows-Kerberos-AppContainer-Enterprise-Authentication-Capability-Bypass.htmlThird Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26414Patch, Vendor Advisory
http://packetstormsecurity.com/files/163206/Windows-Kerberos-AppContainer-Enterprise-Authentication-Capability-Bypass.htmlThird Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26414Patch, Vendor Advisory

Timeline

Published: Jun 8, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-26414?

Windows DCOM Server Security Feature Bypass

How severe is CVE-2021-26414?

CVE-2021-26414 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 49.97% probability of exploitation in the next 30 days.

How do I fix CVE-2021-26414?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-26414?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST