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Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability

🗓️ 14 Jul 2026 14:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 3 Views

Windows RMCAST integer underflow enables remote code execution by an adjacent-network attacker.

Related
Detection
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-54982
14 Jul 202617:04
attackerkb
Circl
CVE-2026-54982
24 Jun 202617:45
circl
CVE
CVE-2026-54982
14 Jul 202617:04
cve
Cvelist
CVE-2026-54982 Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
14 Jul 202617:04
cvelist
EUVD
EUVD-2026-44015
14 Jul 202618:32
euvd
Microsoft KB
July 14, 2026—KB5099444 (Monthly Rollup)
14 Jul 202614:00
mskb
Microsoft KB
July 14, 2026—KB5099445 (Monthly Rollup)
14 Jul 202614:00
mskb
NCSC
Vulnerabilities in Microsoft Windows
14 Jul 202618:13
ncsc
NVD
CVE-2026-54982
14 Jul 202617:17
nvd
Positive Technologies
PT-2026-52025
24 Jun 202600:00
ptsecurity
Rows per page
Vulners
Node
microsoftwindows_server_2012_r2Range<6.3.9600.23291x64
OR
microsoftwindows_server_2012_r2Range<6.3.9600.23291x64
OR
microsoftwindows_server_2012Range<6.2.9200.26226x64
OR
microsoftwindows_server_2012Range<6.2.9200.26226x64
OR
microsoftwindows_server_2016Range<10.0.14393.9339
OR
microsoftwindows_server_2016Range<10.0.14393.9339
OR
microsoftwindows_10_1607Range<10.0.14393.9339x64
OR
microsoftwindows_10_1607Range<10.0.14393.9339x86
OR
microsoftwindows_11_26h1Range<10.0.28000.2525x64
OR
microsoftwindows_11_26h1Range<10.0.28000.2525x64
OR
microsoftwindows_server_2025Range<10.0.26100.33158
OR
microsoftwindows_11_24h2Range<10.0.26100.8875x64
OR
microsoftwindows_11_24h2Range<10.0.26100.8875x64
OR
microsoftwindows_11_25h2Range<10.0.26200.8875x64
OR
microsoftwindows_11_25h2Range<10.0.26200.8875x64
OR
microsoftwindows_server_2025Range<10.0.26100.33158
OR
microsoftwindows_10_22h2Range<10.0.19045.7548x86
OR
microsoftwindows_10_22h2Range<10.0.19045.7548x64
OR
microsoftwindows_10_22h2Range<10.0.19045.7548x64
OR
microsoftwindows_10_21h2Range<10.0.19044.7548x64
OR
microsoftwindows_10_21h2Range<10.0.19044.7548x64
OR
microsoftwindows_10_21h2Range<10.0.19044.7548x86
OR
microsoftwindows_server_2022Range<10.0.20348.5386
OR
microsoftwindows_server_2019Range<10.0.17763.9020
OR
microsoftwindows_server_2019Range<10.0.17763.9020
OR
microsoftwindows_10_1809Range<10.0.17763.9020x64
OR
microsoftwindows_10_1809Range<10.0.17763.9020x86

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14 Jul 2026 14:00Current
6.2Medium risk
Vulners AI Score6.2
CVSS 3.18.8
SSVC
3