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VulnerabilityPublished Updated

CVE-2026-18358: Red Hat Enterprise Linux 10 gnome-remote-desktop · Uncontrolled Resource Consumption

Affects Red Hat Enterprise Linux 10 gnome-remote-desktopSource CVE Database V5

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Not known to be exploited · CVSS 7.5 High.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 31 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
GNOMEgnome-remote-desktopAffected–Fixed in–
Red Hat Enterprise Linux 10gnome-remote-desktopAffected–Fixed in–
Red Hat Enterprise Linux 10.0 Extended Update Supportgnome-remote-desktopAffected–Fixed in–
Red Hat Enterprise Linux 8gnome-remote-desktopAffected–Fixed in–
Red Hat Enterprise Linux 9gnome-remote-desktopAffected–Fixed in–
GitHubgnome-remote-desktoppkg:github/gnome-remote-desktopOther threatsAffected–Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat has released an official security update that fixes this vulnerability. Users should apply the update to affected Red Hat Enterprise Linux 10 systems. If system-mode RDP is not required, it should be disabled. If it must remain enabled, restrict access to the RDP listener (default port 3389) to trusted hosts or management networks using host-based firewall rules. These mitigations reduce the attack surface and prevent exploitation.

Description

A flaw was found in gnome-remote-desktop as shipped in Red Hat Enterprise Linux. When the daemon is running in system mode with RDP enabled, the incoming connection handler bypasses the connection throttler, allowing an unauthenticated remote attacker to open many parallel pre-authentication connections to the RDP listener. This can accumulate accepted sockets and pending routing-token operations until timeout, exhausting resources and preventing legitimate users from establishing RDP sessions. This issue does not affect the upstream version.

References

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