HTTP/2 Denial of Service Vulnerability in Microsoft Products
CVE-2026-49160
What is CVE-2026-49160?
This vulnerability arises from uncontrolled resource consumption within the HTTP/2 protocol, which can be exploited by unauthorized attackers to launch Denial of Service (DoS) attacks over a network. This attack could potentially disrupt the availability of services that rely on HTTP/2, making it critical for organizations to apply security patches and implement monitoring strategies to safeguard their systems.
Affected Version(s)
Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.9234
Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.8880
Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.7417
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.