CVE-2026-18358: gnome-remote-desktop as shipped · Uncontrolled Resource Consumption
Affects gnome-remote-desktopSource GCVE Database
Not known to be exploited · CVSS 7.5 High : upgrade to 10.2 soon.
Data as of 31 Oct 2026, 08:20 UTC
- 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.
- Patch
- Available – fixed in 10.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 31 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 30 Oct 2026.
What to do
Upgrade the Red Hat redhat/gnome-remote-desktop package to 10.2.
Patches and advisories
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Red Hatredhat/gnome-remote-desktoppkg:rpm/redhat/gnome-remote-desktopOther threats | Affected
| 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 a security update that fixes this vulnerability. Users should apply the update as described in the Red Hat advisory. 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 risk of exploitation by limiting exposure.
Description
A vulnerability in gnome-remote-desktop as shipped in Red Hat Enterprise Linux 10 allows unauthenticated remote attackers to bypass connection throttling when the daemon runs in system mode with RDP enabled. This can lead to resource exhaustion by opening many parallel pre-authentication connections, causing denial of service and preventing legitimate RDP sessions. The issue requires a non-default configuration and does not affect the default user-session mode or upstream versions. A security update is available from Red Hat to address this issue.
References
- nvd.nist.gov/vuln/detail/CVE-2026-18358 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:54512 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-18358 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2462876 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:86194 (opens in a new tab)