Vulnerability · Published Feb 14, 2023 · Assigned by microsoft

CVE-2023-21819Windows Secure Channel Denial of Service Vulnerability

High 7.5

In plain English

A high-severity out-of-bounds read in Windows 10 Version 1809 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 30.8% (higher than 98% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)30.8%top 1.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Windows Secure Channel Denial of Service Vulnerability

Affected products (as reported)

VendorProductVersions
Microsoft Windows 10 Version 1809 10.0.17763.0 – before 10.0.17763.4010
Microsoft Windows 10 Version 1809 10.0.0 – before 10.0.17763.4010
Microsoft Windows 10 Version 20H2 10.0.0 – before 10.0.19042.2604
Microsoft Windows 10 Version 21H2 10.0.19043.0 – before 10.0.19044.2604
Microsoft Windows 10 Version 22H2 10.0.19045.0 – before 10.0.19045.2604
Microsoft Windows 11 version 21H2 10.0.0 – before 10.0.22621.1574
Microsoft Windows Server 2019 10.0.17763.0 – before 10.0.17763.4010
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 – before 10.0.17763.4010
Microsoft Windows Server 2022 10.0.20348.0 – before 10.0.20348.1547

Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

References