CVE-2026-18358General

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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.

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0.5/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-400

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Threat summary

Patch or workaround signal is available
2 mentions across 2 observed days
Momentum state: stable

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 1 signal
General: 1 classified signal
Disclosure: 1 classified signal
Peaked 1d ago at 1 mentions (2026-08-01); latest day: 1
2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d

Signal classification2 categories

General

150.0%

Disclosure

150.0%

Referenced assets2 URLs

By indicator

Classification over time

Date	Total	Labels

2026-08-01	1	General1
2026-08-02	1	Disclosure1

Full discourse2 posts

Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters90d
Disclosure
CVE-2026-18358 - DoS in Gnome-Remote-Desktop on RHEL. Unauthenticated RDP flood exhausts resources, blocking legit sessions. CVSS 7.5. No patch yet; restrict RDP access. #CVE #infosec #Linux #rhel #cybersecurityawareness #cybersecuritynews #cybersecuritytips #redteam #blueteam #cvealert #git #github #gitlab #hacker #hacker #kali #developer #developers #sysadmin #devsecops #devops https://www.valtersit.com/cve/CVE-2026-18358/
Post summary
CVE‑2026‑18358 is a denial‑of‑service flaw in Gnome‑Remote‑Desktop on RHEL, CVSS 7.5, with no patch available yet; users should restrict RDP access to mitigate the threat.
0000078
980 followersView on X
VulDB 🛡@vuldb90d
General
The severity is increased for this new vulnerability affecting Red Hat Enterprise Linux (CVE-2026-18358) https://vuldb.com/vuln/385074
Post summary
A brief note indicates that the severity of CVE‑2026‑18358 for Red Hat Enterprise Linux has been increased, but provides no technical details, PoC, or mitigation information.
00000117
2.3K followersView on X

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