CVE-2026-96541
Gnome-remote-desktop: gnome-remote-desktop: unauthenticated rdp sockets lack a handshake deadline
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
7.5
Gnome-remote-desktop: gnome-remote-desktop: unauthenticated rdp sockets lack a handshake deadline
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.
- Record
CVE-2026-96541- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-06
EUVDEUVD-2026-85525
7.5
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.
- Record
EUVD-2026-85525- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-06
GitHub AdvisoriesGHSA-gv4j-r8qw-8qpc
7.5
A denial-of-service flaw was found in gnome-remote-desktop. An unauthenticated remote attacker...
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.
- Record
GHSA-gv4j-r8qw-8qpc- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
NVD
7.5
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.
- Record
CVE-2026-96541- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-06
OSVDEBIAN-CVE-2026-96541
7.5
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.
- Record
DEBIAN-CVE-2026-96541- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-04
OSVUBUNTU-CVE-2026-96541
7.5
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.
- Record
UBUNTU-CVE-2026-96541- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gnome-remote-desktopDebian:14 |
All versions, plus listed versions 48.1-448.2-149.0-149.1-149.1-2 Show 11 moreShow less49.2-149.2-249.2-349.2-450.1-150.1-250.1-350.1-550.2-150~beta-151.0-1 |
None known |
gnome-remote-desktopUbuntu:20.04:LTS |
All versions, plus listed versions 0.1.7-1 |
None known |
gnome-remote-desktopUbuntu:22.04:LTS |
All versions, plus listed versions 40.2-141.0-141.1-341.2-142~beta-1 Show 11 moreShow less42~rc-142.0-142.0-242.0-4ubuntu142.1.1-0ubuntu142.2-0ubuntu142.3-0ubuntu142.4-0ubuntu142.7-0ubuntu142.9-0ubuntu0.22.04.142.9-0ubuntu0.22.04.2 |
None known |
gnome-remote-desktopUbuntu:24.04:LTS |
All versions, plus listed versions 45.0-145.1-145.1-1build146~rc-0ubuntu246.0-2 Show 5 moreShow less46.1-146.2-1~ubuntu24.04.246.3-0ubuntu146.3-0ubuntu1.146.3-0ubuntu1.2 |
None known |
gnome-remote-desktopUbuntu:26.10 |
All versions, plus listed versions 50.0-0ubuntu250.1-350.1-551~alpha-0ubuntu151~alpha-0ubuntu251.0-0ubuntu1 |
None known |
gnome-remote-desktopUbuntu:26.04:LTS |
All versions, plus listed versions 49.0-0ubuntu149.1-149.1-249.2-149.2-2 Show 6 moreShow less49.2-2ubuntu150~beta-150~rc-0ubuntu150.0-0ubuntu150.0-0ubuntu250.2-0ubuntu0.1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | CVE List, EUVD | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-96541 is a high vulnerability (CVSS 7.5) in Red Hat Enterprise Linux 10, published September 23, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.88%, the 59th percentile. No source names a fixed version.
References
access.redhat.com/security/cve/CVE-2026-96541
bugzilla.redhat.com/show_bug.cgi?id=2539385
gitlab.gnome.org/GNOME/gnome-remote-desktop/-/issues/356
nvd.nist.gov/vuln/detail/CVE-2026-96541
github.com/advisories/GHSA-gv4j-r8qw-8qpc
security-tracker.debian.org/tracker/CVE-2026-96541
ubuntu.com/security/CVE-2026-96541
cve.org/CVERecord?id=CVE-2026-96541