CVE-2023-32084
Published: 11 July 2023
Summary
CVE-2023-32084 is a high-severity NULL Pointer Dereference (CWE-476) vulnerability in Microsoft Windows 10 1809. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 9.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2023-32084 is a denial of service vulnerability affecting HTTP.sys, the kernel-mode device driver that processes HTTP requests on Windows systems. It carries a CVSS 3.1 base score of 7.5 and is associated with CWE-476.
Remote unauthenticated attackers can exploit the flaw over the network with low attack complexity to trigger a denial of service, resulting in high impact to availability while leaving confidentiality and integrity unaffected.
Microsoft has published guidance on the vulnerability through its Security Response Center at the referenced advisory URL. The EPSS score has remained low and stable, with a current value of 0.0543 and a peak of 0.0573.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-36352
Vulnerability details
HTTP.sys Denial of Service Vulnerability
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.