CVE-2026-20806CWE-843

CVE-2026-20806

Medium · published April 14, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
26.3
In the wild
Unconfirmed
What it is

Access of resource using incompatible type ('type confusion') in Windows COM allows an authorized attacker to disclose information locally.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00341 · 26.3th percentile
Weakness
CWE-843 · Access of Resource Using Incompatible Type ('Type Confusion')
Published
2026-04-14T22:16Z
Affected products (20)
ProductVersionsFixed in
microsoft/windows_10_1809< 10.0.17763.864410.0.17763.8644
microsoft/windows_10_1809< 10.0.17763.864410.0.17763.8644
microsoft/windows_10_21h2< 10.0.19044.718410.0.19044.7184
microsoft/windows_10_21h2< 10.0.19044.718410.0.19044.7184
microsoft/windows_10_21h2< 10.0.19044.718410.0.19044.7184
microsoft/windows_10_22h2< 10.0.19045.718410.0.19045.7184
microsoft/windows_10_22h2< 10.0.19045.718410.0.19045.7184
microsoft/windows_10_22h2< 10.0.19045.718410.0.19045.7184
microsoft/windows_11_23h2< 10.0.22631.693610.0.22631.6936
microsoft/windows_11_23h2< 10.0.22631.693610.0.22631.6936
microsoft/windows_11_24h2< 10.0.26100.824610.0.26100.8246
microsoft/windows_11_24h2< 10.0.26100.824610.0.26100.8246
microsoft/windows_11_25h2< 10.0.26200.824610.0.26200.8246
microsoft/windows_11_25h2< 10.0.26200.824610.0.26200.8246
microsoft/windows_11_26h1< 10.0.28000.183610.0.28000.1836
microsoft/windows_11_26h1< 10.0.28000.183610.0.28000.1836
microsoft/windows_server_2019< 10.0.17763.864410.0.17763.8644
microsoft/windows_server_2022< 10.0.20348.502010.0.20348.5020
microsoft/windows_server_2022_23h2< 10.0.25398.227410.0.25398.2274
microsoft/windows_server_2025< 10.0.26100.3269010.0.26100.32690
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20806 · [email protected]
EPSS history
Timeline
  • 14 APR 16:57Z
    Windows COM Server Information Disclosure Vulnerability
    cvelistv5