CVE-2026-96541
📛 CVE Title
Gnome-remote-desktop: gnome-remote-desktop: unauthenticated rdp sockets lack a handshake deadline
Description
A denial-of-service flaw was found in gnome-remote-desktop. An unauthenticated remote attacker can open RDP connections without completing the handshake and retain the connection-throttling slots indefinitely because no pre-authentication handshake deadline is enforced. By exhausting the global connection limit, an attacker can prevent new RDP clients from connecting until a holding socket is closed.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- redhat
- CVSS severity
- HIGH
- CVSS score
- 7.5 / 10
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Effective score
- 7.5 / 10 HIGH source: CNA overview
- CWE(s)
-
CWE-400 - Reserved
- 2026-09-23
- Published
- 2026-09-23 18:08 UTC
- Last updated
- 2026-09-23 19:24 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/96xxx/CVE-2026-96541.json
- Linked Threat
- CVE-2026-96541 — Gnome-remote-desktop: gnome-remote-desktop: unauthenticated rdp sockets lack a handshake deadline
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-09-23 19:19:54 UTC
- NVD last modified
- 2026-09-23 20:17:25 UTC
- NVD CVSS v3.1
- 7.5 / 10 HIGH source: secalert@redhat.com
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Exploitability subscore
- 3.9 / 10
- Impact subscore
- 3.6 / 10
NVD / KEV / EPSS data refreshed 2026-09-24 04:26 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-85525 - Assigner
- redhat
- Published
- Sep 23, 2026, 6:08:23 PM
- Updated
- Sep 23, 2026, 7:24:33 PM
- EUVD base score (CVSS 3.1)
-
7.5 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EUVD-reported EPSS
- 0.0000
- Aliases
-
GHSA-gv4j-r8qw-8qpc
ENISA description: A denial-of-service flaw was found in gnome-remote-desktop. An unauthenticated remote attacker can open RDP connections without completing the handshake and retain the connection-throttling slots indefinitely because no pre-authentication handshake deadline is enforced. By exhausting the global connection limit, an attacker can prevent new RDP clients from connecting until a holding socket is closed.
Affected products (3)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
Vendor references (3)
References embedded in the original CVE record by the assigning CNA.
- https://access.redhat.com/security/cve/CVE-2026-96541 vdb-entryx_refsource_REDHAT
- RHBZ#2539385 issue-trackingx_refsource_REDHAT
- https://gitlab.gnome.org/GNOME/gnome-remote-desktop/-/issues/356
Web references (0)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
No web references attached yet.
NVD-tagged references (4)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://access.redhat.com/security/cve/CVE-2026-96541 secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2539385 secalert@redhat.com
- https://gitlab.gnome.org/GNOME/gnome-remote-desktop/-/issues/356 secalert@redhat.com
- https://gitlab.gnome.org/GNOME/gnome-remote-desktop/-/issues/356 134c704f-9b21-4f2e-91b3-4a467353bcc0
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:access.redhat.com
A deferred status means that a fix for an affected product version is not guaranteed due to higher-priority development work. Available options depend mostly on the Impact of the vulnerability and the current Life Cycle phase of your product. Overall, you have the following options: Apply a mitigation (if one exists).
2026-09-24 11:07 UTC -
web:access.redhat.com
Products & tools Red Hat Documentation Find answers, get guidance, and learn how to use Red Hat products. Red Hat Ecosystem Catalog Find hardware, software, and cloud providers―and download container images―certified to perform with Red Hat technologies.
2026-09-24 11:07 UTC -
web:app.opencve.io
A denial-of-service flaw was found in gnome-remote-desktop. An unauthenticated remote attacker can open RDP connections without completing the handshake and retain the connection-throttling slots indefinitely because no pre-authentication handshake deadline is enforced. By exhausting the global connection limit, an attacker can prevent new RDP clients from connecting until a holding socket is ...
2026-09-24 11:07 UTC -
web:blog.qualys.com
What can I do before Microsoft releases a patch ? Qualys TruRisk™ Eliminate provides a recommended mitigation for CVE - 2026 -69414 that can be applied to affected systems while Microsoft works on a fix . Assets can then be reassessed in Qualys VMDR to verify the remediation outcome.
2026-09-24 11:07 UTC -
web:learn.microsoft.com
Learning path Learn how Microsoft supports secure software development as part of a cybersecurity solution - Training Secure software development means integrating security into each phase of your development lifecycle, from requirements analysis to maintenance. Microsoft provides many services that can help you develop more secure code and deploy a more secure application in the cloud. This ...
2026-09-24 11:07 UTC -
web:learn.microsoft.com
As of November 11, 2025, Home and Pro editions of Windows 11, version 23H2 have reached end of servicing. Enterprise and Education editions of version 23H2 will continue to receive monthly security updates until November 10, 2026 .
2026-09-24 11:07 UTC -
web:msrc.microsoft.com
The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.
2026-09-24 11:07 UTC -
web:senserva.com
Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.
2026-09-24 11:07 UTC -
web:vulmon.com
Vulnerability Summary An unauthenticated remote attacker can cause a denial-of-service in gnome-remote-desktop. The flaw stems from the absence of a pre-authentication handshake deadline, allowing attackers to open RDP connections and indefinitely occupy connection-throttling slots. This exhausts the global connection limit, preventing new RDP clients from connecting until a holding socket is ...
2026-09-24 11:07 UTC -
web:zecurit.com
Get the complete breakdown of Microsoft's September 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .
2026-09-24 11:07 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-96541.json.
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