CVE-2023-28233
Microsoft Windows 11 21H2 ≤ 10.0.22000.1817
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSummary
CVE-2023-28233 is a high-severity an unspecified weakness vulnerability in Microsoft Windows 11 21H2. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 24% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2023-28233 is a denial-of-service vulnerability in Windows Secure Channel (Schannel), the component that implements SSL/TLS and other cryptographic protocols for Windows systems. It carries a CVSS 3.1 base score of 7.5 reflecting network attack vector, low complexity, and no required privileges or user interaction, with the impact limited to high availability loss.
An unauthenticated remote attacker can send specially crafted network traffic to a vulnerable Windows host and trigger the flaw, causing the Schannel service to stop responding or crash and thereby disrupting any applications that rely on secure channel communications.
Microsoft has published an advisory and associated security updates for the issue at the referenced URL. The EPSS score has remained flat at 0.1470 with no material increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-31941
Vulnerability Data
Windows Secure Channel Denial of Service Vulnerability
- CWE(s)
Related Threats
CVEs Like This One
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.