CVE-2026-70247
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk27th percentile - higher than 27% of all known CVEs
Summary
An out-of-bounds read in Windows HTTP.sys allows an authorized attacker to execute code locally.
Risk Assessment
An attacker with local access could execute arbitrary code in the context of the HTTP.sys service, potentially compromising the system.
Recommendation
Install the latest Windows updates containing the fix for HTTP.sys.
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-2026-70208Medium
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.
- CVE-2026-62735High
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 authorized attacker to execute code locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS