CVE-2026-70091 Windows DNS Denial of Service Vulnerability Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an unauthorized attacker to deny service over a network. EPSS 0.01 CVE-2026-70091 US tg: zranitelnost tp: DDoS 8. 9. 2026 · zachyceno 19:32 · Microsoft Security · CVE-2026-70091 Windows DNS Denial of Service Vulnerability