CVE-2026-33096
HighCVSS 7.5Exploitation Probability (EPSS)
Elevated risk67th percentile - higher than 67% of all known CVEs
Summary
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
Risk Assessment
An attacker can remotely cause HTTP services on a Windows server to crash, leading to disruption of web applications.
Recommendation
Apply the security update from Microsoft that addresses this vulnerability, or temporarily disable unnecessary HTTP.sys features.
Other vulnerabilities in Windows HTTP.sys
See all- CVE-2026-47291Critical
An integer overflow or wraparound vulnerability in Windows HTTP.sys allows an unauthorized attacker to execute code remotely over a network.
- CVE-2026-83714Medium
Use of uninitialized resource in Windows HTTP.sys allows an authorized attacker to disclose information locally.
- CVE-2026-83705Medium
Exposure of sensitive system information to an unauthorized control sphere in Windows HTTP.sys allows an authorized attacker to disclose information locally.
- CVE-2026-70247High
An out-of-bounds read in Windows HTTP.sys allows an authorized attacker to execute code locally.
- CVE-2026-70208Medium
Out-of-bounds read in Windows HTTP.sys allows an authorized attacker to disclose information locally.
- CVE-2026-69597High
Use after free in Windows HTTP.sys allows an authorized attacker to elevate privileges over a network.
- CVE-2026-62811High
Heap-based buffer overflow in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.
- CVE-2026-62753High
Heap-based buffer overflow in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.
- CVE-2026-62741High
Integer underflow (wrap or wraparound) in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.
- CVE-2026-62739High
Heap-based buffer overflow in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS