CVE-2026-62741
HighCVSS 7.8Exploitation Probability (EPSS)
High risk79th percentile - higher than 79% of all known CVEs
Summary
Integer underflow (wrap or wraparound) in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.
Risk Assessment
The vulnerability could lead to privilege escalation and system compromise.
Recommendation
Apply Windows security updates to address the issue.
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-2026-69597High
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-2026-62739High
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.
- CVE-2026-61937High
Integer overflow or wraparound in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.
- CVE-2026-50420Medium
An out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to disclose information locally.
- CVE-2026-49787High
Unrestricted resource allocation vulnerability in Windows HTTP.sys. An unauthorized attacker can remotely cause a denial of service.
- CVE-2026-33096High
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
Original NVD description (English source)
Integer underflow (wrap or wraparound) in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS