← Vulnerability feed
Start free
Open in platform
Vulnerability record · CVE-2023-21819 · published 14 February 2023
CVE-2023-21819: Microsoft windows 10 1809 out-of-bounds read vulnerability
Microsoft · Windows 10 1809
Windows Secure Channel Denial of Service Vulnerability
7.5 CVSS 3.1 High EPSS 31% · top 1.8% CWE-125 · Out-of-bounds read
7.5CVSS 3.1 base score
31%EPSS exploitation probability, 30 days
NoNot in CISA KEV
7Affected product versions listed by NVD
2References
19 Aug 2026Last modified by NVD
Description
Windows Secure Channel Denial of Service Vulnerability
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
7 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
| Link | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21819 | PatchVendor Advisory |
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21819 | PatchVendor Advisory |
Track CVE-2023-21819 inside VULONE
Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.
Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
9.8CVE-2026-33824Double free in Windows IKE Extension enables remote code executionA double free flaw (CWE-415) exists in the Windows IKE Extension, reachable over the network by an unauthenticated attacker. Successful exploitation …KEVEPSS 1.6%analysed9.8CVE-2021-31166Microsoft Windows HTTP Protocol Stack use-after-free RCEThe HTTP Protocol Stack in Microsoft Windows 10 2004/20H2 and Windows Server 2004/20H2 contains a use-after-free (CWE-416) that allows remote code ex…KEVEPSS 100%analysed8.8CVE-2026-21510Windows Shell protection mechanism failure allows security feature bypassWindows Shell contains a protection mechanism failure (CWE-693) that lets an unauthorized attacker bypass a security feature over a network. The flaw…KEVEPSS 24%analysed8.8CVE-2026-21513Microsoft MSHTML security feature bypass on WindowsCVE-2026-21513 is a protection mechanism failure (CWE-693) in the Microsoft MSHTML Framework that lets an unauthorized attacker bypass a security fea…KEVEPSS 16%analysed8.8CVE-2025-33073Windows SMB improper access control allows privilege elevationWindows SMB contains an improper access control flaw (CWE-284) that lets an authorized attacker elevate privileges over the network. Microsoft rates …KEVEPSS 83%analysed8.8CVE-2025-33053Microsoft Windows WebDAV Internet Shortcut File Path Control RCEWindows Internet Shortcut (.url) files allow external control of a file name or path, which an unauthorized attacker can abuse to execute code over a…KEVEPSS 87%analysed8.8CVE-2024-49039Windows Task Scheduler elevation of privilege via improper authenticationCVE-2024-49039 is an elevation of privilege flaw in the Windows Task Scheduler, classified as improper authentication (CWE-287). A local attacker wit…KEVEPSS 14%analysed8.8CVE-2024-43461Windows MSHTML Platform spoofing flaw enables code executionCVE-2024-43461 is a spoofing vulnerability in the Windows MSHTML platform, the legacy rendering engine still reachable through Windows components. Th…KEVEPSS 54%analysed
Source: NIST National Vulnerability Database (record CVE-2023-21819), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.
