The vulnerability of the Reliable Multicast Transport Driver (RMCAST) for Windows operating systems allows a hacker to execute arbitrary code.
🗓️ 08 Oct 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 6 Views
| Reporter | Title | Published | Views | Family All 16 |
|---|---|---|---|---|
 | CVE-2026-78450 | 8 Sep 202622:01 | – | circl |
 | CVE-2026-78450 | 8 Sep 202617:18 | – | cve |
 | CVE-2026-78450 Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability | 8 Sep 202617:18 | – | cvelist |
 | EUVD-2026-73801 | 8 Sep 202617:18 | – | euvd |
 | September 8, 2026—KB5122871 (OS Build 26100.33438) | 13 Oct 202614:00 | – | mskb |
| September 8, 2026—KB5122882 (OS Build 20348.5622) | 13 Oct 202614:00 | – | mskb |
 | Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability | 8 Sep 202614:00 | – | mscve |
 | CVE-2026-78450 | 8 Sep 202618:20 | – | nvd |
 | PT-2026-109397 | 8 Sep 202600:00 | – | ptsecurity |
| PT-2026-87994 | 8 Sep 202600:00 | – | ptsecurity |
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08 Oct 2026 00:00Current
7.7High risk
Vulners AI Score7.7
CVSS 27.6
CVSS 38.1
EPSS0.00707