CVE-2026-699795.5MediumCWE-424

CVE-2026-69979: Windows AppX Deployment Service Security Feature Bypass Vulnerability

Microsoft · Windows 10 Version 21H2

Vendor fix available · Affected: Microsoft Windows 10 Version 21H2 · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.4%probability of exploitation in the next 30 days

32nd percentile

050100

Higher than 32% of scored CVEs

5.5MediumCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

Improper protection of alternate path in Windows AppX Deployment Service allows an authorized attacker to bypass a security feature locally.

Affected products11

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Microsoft · Windows 10 Version 21H2from 10.0.19044.0 before 10.0.19044.7807
Microsoft · Windows 10 Version 22H2from 10.0.19045.0 before 10.0.19045.7807
Microsoft · Windows 11 version 23H2from 10.0.22631.0 before 10.0.22631.7652
Microsoft · Windows 11 Version 23H2from 10.0.22631.0 before 10.0.22631.7652
Microsoft · Windows 11 Version 24H2from 10.0.26100.0 before 10.0.26100.9711
Microsoft · Windows 11 Version 25H2from 10.0.26200.0 before 10.0.26200.9711
Microsoft · Windows 11 version 26H1from 10.0.28000.0 before 10.0.28000.3231
Microsoft · Windows 11 Version 26H2from 10.0.26300.0 before 10.0.26300.9711
Microsoft · Windows Server 2022from 10.0.20348.0 before 10.0.20348.5761
Microsoft · Windows Server 2025from 10.0.26100.0 before 10.0.26100.33650
Microsoft · Windows Server 2025 (Server Core installation)from 10.0.26100.0 before 10.0.26100.33650

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Improper Protection of Alternate Path · Access Control
Vendor: Microsoft
Published: October 2026
Band: Unlikely (under 1%), October 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-69979 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.