CVE-2026-85943

LOWCVSS 7.0 · HIGH

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Time-of-check time-of-use (toctou) race condition in Reliable Multicast Transport Driver (RMCAST) allows an authorized attacker to elevate privileges locally.

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0.0/ 10 priority

Sources & remediation

Other references

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85943

Weakness type (CWE)

CWE-122CWE-367

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Deep dive

Full discourse1 post

VulniPulse@vulnipulse23h
CVE advisory: CVE-2026-85943 - microsoft: Reliable Multicast Transport Driver (RMCAST) Elevation of Privilege Vulnerability. https://vulnipulse.com/advisories/microsoft-cve-2026-85943 #CVE #CyberSecurity #Microsoft #WindowsServer
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