CVE-2023-23392
Published: 14 March 2023
Summary
CVE-2023-23392 is a critical-severity Use After Free (CWE-416) vulnerability in Microsoft Windows 11 21H2. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 5.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2023-23392 is a remote code execution vulnerability in the HTTP Protocol Stack, assigned a CVSS v3.1 score of 9.8. The flaw is associated with CWE-416 and was publicly disclosed on 14 March 2023. It affects the HTTP Protocol Stack component in supported Microsoft Windows releases.
An unauthenticated attacker can exploit the issue over the network without user interaction to achieve full confidentiality, integrity, and availability impact on the target system. Successful exploitation grants the ability to execute arbitrary code in the context of the vulnerable process.
The primary vendor advisory is available at the Microsoft Security Response Center link provided in the references; administrators should consult that page for patch availability and deployment guidance specific to each affected Windows version.
The associated EPSS score reached a peak of 0.1446 with no material increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-27492
Vulnerability details
HTTP Protocol Stack Remote Code Execution Vulnerability
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Use-after-free exploits that achieve arbitrary code execution are blocked or significantly hardened by non-executable pages and ASLR.