CVE-2026-49160: High-Severity Denial of Service (DoS) Vulnerability in Windows HTTP.sys | The Cyber Security Hub™
🚨 CVE of the Week 🚨
CVE-2026-49160: High-Severity Denial of Service (DoS) Vulnerability in Windows HTTP.sys
This zero-day flaw exposes vulnerable systems to an “HTTP/2 Bomb” attack, where an unauthorized, remote attacker can send a tiny, specially crafted HTTP/2 request that expands rapidly in memory, triggering uncontrolled resource consumption.
Why it matters:
– Instantaneous crashing of critical, adjacent services sharing the driver.
– Complete infrastructure disruption with zero user interaction required.
Recommended actions:
1. Install the latest security updates released by Microsoft.
2. If patching must be delayed, consider adjusting web server configurations (such as reducing MaxRequestBytes) to mitigate memory amplification risks.
Use this mitigation script by Vicarius to implement the workaround >> https://lnkd.in/gyknzBxY
Let Vicarius know if you need help securing your systems or understanding these steps further!
