CVE-2026-54982

HighCVSS 8.8

Published: 14/07/2026(UTC)Updated: 20/07/2026(UTC)Translated: 21/07/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.39%

31th percentile - higher than 31% of all known CVEs

Summary

An integer underflow (wrap or wraparound) vulnerability in the Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.

Risk Assessment

An attacker on an adjacent network can remotely execute arbitrary code on the vulnerable system, leading to full compromise of data confidentiality, integrity, and availability.

Recommendation

Immediately apply the security update provided by the operating system vendor for the RMCAST component.

Other vulnerabilities in RMCAST

CVE-2026-54995High
A use-after-free vulnerability in the Reliable Multicast Transport (RMCAST) driver allows an unauthorized attacker to execute code remotely over the network.

Original NVD description (English source)

Integer underflow (wrap or wraparound) in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.