Remote Desktop Protocol Vulnerability in Red Hat Enterprise Linux
CVE-2026-18358

7.5HIGH

Key Information:

Vendor

Gnome
Status
Gnome-remote-desktop
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Vendor
CVE Published:
31 July 2026

What is CVE-2026-18358?

A vulnerability exists in the gnome-remote-desktop component of Red Hat Enterprise Linux, where the connection handler fails to throttle incoming connections when RDP is enabled. This oversight allows unauthenticated attackers to initiate multiple pre-authentication connections, potentially leading to resource exhaustion. As a result, legitimate users may encounter difficulties in establishing RDP sessions, as the system becomes overwhelmed by the accumulation of accepted sockets and pending routing operations.

Affected Version(s)

Red Hat Enterprise Linux 10 0:49.3-4.el10_2

References

https://access.redhat.com/errata/RHSA-2026:54512
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-18358
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2462876
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was discovered by Found by AISLE in partnership with Red Hat.
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