CVE-2026-96541

Gnome-remote-desktop: gnome-remote-desktop: unauthenticated rdp sockets lack a handshake deadline

Products / packages Red Hat Enterprise Linux 10 · Red Hat Enterprise Linux 10.2 Extended Update Support · Red Hat Enterprise Linux 9.8 Extended Update Support · 2 more

Published 23/09/2026, 18:08:23 UTC

Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 14/11/2026, 21:25:33 UTC

redhat · CVSS:3.1 · 7.5

Assessment vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity

high7.5

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Exploit reference published

Source-linked evidence; not proof of attacks in the wild or independent validation.

Remediation

Source guidance available

Review the recorded instructions. Guidance may be a workaround rather than a fixed version.

What this means

Gnome-remote-desktop has a denial-of-service flaw where an unauthenticated remote attacker can open RDP connections without completing the handshake. The attacker can exhaust the global connection limit, preventing new RDP clients from connecting. Affected versions are not explicitly stated.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

Red Hat · redhat

Red Hat Enterprise Linux 10

1 range

redhat version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

unaffected

0:49.3-18.el10_3 → before *

rpm versions

Other versions: affected

Product identifiers (CPE)

cpe:/o:redhat:enterprise_linux:10.3

Red Hat · redhat

Red Hat Enterprise Linux 10.2 Extended Update Support

1 range

redhat version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

unaffected

0:49.3-5.el10_2 → before *

rpm versions

Other versions: affected

Product identifiers (CPE)

cpe:/o:redhat:enterprise_linux_eus:10.2

Red Hat · redhat

Red Hat Enterprise Linux 9.8 Extended Update Support

1 range

redhat version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

unaffected

0:40.0-13.el9_8 → before *

rpm versions

Other versions: affected

Product identifiers (CPE)

cpe:/a:redhat:rhel_eus:9.8::appstream

Red Hat · redhat

Red Hat Enterprise Linux 8

0 ranges

redhat version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

Other versions: affected

Product identifiers (CPE)

cpe:/a:redhat:enterprise_linux:8

Red Hat · redhat

Red Hat Enterprise Linux 9

0 ranges

redhat version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

Other versions: affected

Product identifiers (CPE)

cpe:/a:redhat:enterprise_linux:9

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

Disable the RDP listener when it is not required, or restrict access to the RDP port to trusted networks or hosts at the network boundary. No application-level mitigation that preserves unrestricted RDP access is known.

redhat guidance ↗

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

The sources identify public exploit references. We have not independently tested them; their availability does not establish exploitation in the wild.

gitlab.gnome.org/GNOME/gnome-remote-desktop/-/issues/356 ↗Attributed to CISA-ADP

Original source description

Read the full publisher 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.

References

6 sources

access.redhat.com/errata/RHSA-2026:98622

Vendor advisoryredhat

access.redhat.com/errata/RHSA-2026:99125

Vendor advisoryredhat

access.redhat.com/errata/RHSA-2026:99136

Vendor advisoryredhat

access.redhat.com/security/cve/CVE-2026-96541

Security advisoryredhat

bugzilla.redhat.com/show_bug.cgi

Source referenceredhat

gitlab.gnome.org/GNOME/gnome-remote-desktop/-/issues/356

Public exploit referenceredhat · CISA-ADP

Inside the record

Evidence available

Package identity · not supplied

Version evidence

Remediation guidance

Weakness classification

Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-96541

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-400 ↗

Uncontrolled Resource Consumption

redhat

Contributing organizations · 2

redhat

Assigning organization

2026-11-12

CISA-ADP

Additional data publisher

2026-11-03

Timeline

All times UTC

23 Sept 2026, 18:08
Advisory published
Publication date supplied by the source.
12 Nov 2026, 05:55
Source updated
Latest modification date supplied by the source.
12 Nov 2026, 06:00
Last imported by cve.new
Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes

CVE · CVE-2026-965412026-11-12

Observed 2026-11-12T06:00:12.815Z · upstream updated 2026-11-12T05:55:30.207Z

Product or version evidence changed

before

[
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 10",
    "platforms": [],
    "versions": [
      {
        "version": "0:49.3-18.el10_3",
        "status": "unaffected",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:10.3"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  },
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 8",
    "platforms": [],
    "versions": [],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:8"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  },
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 9",
    "platforms": [],
    "versions": [],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:9"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  }
]

after

[
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 10",
    "platforms": [],
    "versions": [
      {
        "version": "0:49.3-18.el10_3",
        "status": "unaffected",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:10.3"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  },
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 10.2 Extended Update Support",
    "platforms": [],
    "versions": [
      {
        "version": "0:49.3-5.el10_2",
        "status": "unaffected",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux_eus:10.2"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  },
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 9.8 Extended Update Support",
    "platforms": [],
    "versions": [
      {
        "version": "0:40.0-13.el9_8",
        "status": "unaffected",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:rhel_eus:9.8::appstream"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  },
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 8",
    "platforms": [],
    "versions": [],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:8"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  },
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 9",
    "platforms": [],
    "versions": [],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:9"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  }
]

References changed

before

[
  "https://access.redhat.com/errata/RHSA-2026:98622",
  "https://access.redhat.com/security/cve/CVE-2026-96541",
  "https://bugzilla.redhat.com/show_bug.cgi?id=2539385",
  "https://gitlab.gnome.org/GNOME/gnome-remote-desktop/-/issues/356"
]

after

[
  "https://access.redhat.com/errata/RHSA-2026:98622",
  "https://access.redhat.com/errata/RHSA-2026:99125",
  "https://access.redhat.com/errata/RHSA-2026:99136",
  "https://access.redhat.com/security/cve/CVE-2026-96541",
  "https://bugzilla.redhat.com/show_bug.cgi?id=2539385",
  "https://gitlab.gnome.org/GNOME/gnome-remote-desktop/-/issues/356"
]

CVE · CVE-2026-965412026-11-11

Observed 2026-11-11T15:12:55.095Z · upstream updated 2026-11-11T11:47:35.809Z

Product or version evidence changed

before

[
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 10",
    "platforms": [],
    "versions": [],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:10"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  },
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 8",
    "platforms": [],
    "versions": [],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:8"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  },
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 9",
    "platforms": [],
    "versions": [],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:9"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  }
]

after

[
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 10",
    "platforms": [],
    "versions": [
      {
        "version": "0:49.3-18.el10_3",
        "status": "unaffected",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:10.3"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  },
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 8",
    "platforms": [],
    "versions": [],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:8"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  },
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 9",
    "platforms": [],
    "versions": [],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:9"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  }
]

References changed

before

[
  "https://access.redhat.com/security/cve/CVE-2026-96541",
  "https://bugzilla.redhat.com/show_bug.cgi?id=2539385",
  "https://gitlab.gnome.org/GNOME/gnome-remote-desktop/-/issues/356"
]

after

[
  "https://access.redhat.com/errata/RHSA-2026:98622",
  "https://access.redhat.com/security/cve/CVE-2026-96541",
  "https://bugzilla.redhat.com/show_bug.cgi?id=2539385",
  "https://gitlab.gnome.org/GNOME/gnome-remote-desktop/-/issues/356"
]

CVE · CVE-2026-965412026-11-06

Observed 2026-11-06T03:17:11.074Z · upstream updated 2026-11-06T02:14:41.893Z

Product or version evidence changed

before

[
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 10",
    "platforms": [],
    "versions": [],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:10"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  },
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 8",
    "platforms": [],
    "versions": [],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:8"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  },
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 9",
    "platforms": [],
    "versions": [],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:9"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  }
]

after

[
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 10",
    "platforms": [],
    "versions": [],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:10"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  },
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 8",
    "platforms": [],
    "versions": [],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:8"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  },
  {
    "vendor": "Red Hat",
    "name": "Red Hat Enterprise Linux 9",
    "platforms": [],
    "versions": [],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:9"
    ],
    "source": "redhat",
    "url": "https://www.cve.org/CVERecord?id=CVE-2026-96541"
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.

Reading the signals

Severity · CVSS: Technical impact and attack conditions. The headline is the highest imported catalog score; sources may disagree.
Observed exploitation · KEV: An absent or unavailable KEV listing does not establish that exploitation has not occurred.
Predicted exploitation · EPSS: 0.91% estimated probability in the next 30 days. 2026-11-03 · FIRST EPSS.

CISA-ADP · SSVC

CISA Coordinator · 2026-10-14

Exploitation: none
Automatable: no
Technical Impact: total

SSVC describes the publisher’s decision context. Your organization’s exposure and priorities may differ.

Record identifiers

Aliases: None recorded

Source evidence

Request a correction or dispute

Start with the assigning organization for this record. Include the CVE ID, the disputed information, and supporting evidence. A dispute does not itself reject a record.

Find the responsible CNA →Official dispute and escalation process ↗

CVE CVE-2026-96541

Enrichment coverage

NVDAvailable

Checked 04/11/2026, 12:00:49 UTC

GHSAAvailable

Checked 04/11/2026, 12:00:38 UTC

EUVDAvailable

Checked 04/11/2026, 12:00:36 UTC

EPSSAvailable

Checked 04/11/2026, 12:00:34 UTC

Additional source evidence

FIRST EPSS · CVE-2026-96541

EPSS 0.91% probability of exploitation in the next 30 days. Percentile: 60.09% · 2026-11-03

Checked 04/11/2026, 12:00:34 UTC

ENISA EUVD · EUVD-2026-85525

CVSS 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Checked 04/11/2026, 12:00:36 UTC

GitHub Advisory Database · GHSA-gv4j-r8qw-8qpc

CVSS 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Checked 04/11/2026, 12:00:38 UTC

NVD · CVE-2026-96541

CVSS 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Checked 04/11/2026, 12:00:49 UTC

Sponsored by MoxsoBuild security habits with adaptive training and phishing simulations.View as JSON

Investigate in your agent.

Gnome-remote-desktop: gnome-remote-desktop: unauthenticated rdp sockets lack a handshake deadline

Severity and exploitation

What this means

Attack conditions

Affected versions

Red Hat Enterprise Linux 10

affected

unaffected

unknown

Red Hat Enterprise Linux 10.2 Extended Update Support

affected

unaffected

unknown

Red Hat Enterprise Linux 9.8 Extended Update Support

affected

unaffected

unknown

Red Hat Enterprise Linux 8

affected

unaffected

unknown

Red Hat Enterprise Linux 9

affected

unaffected

unknown

What to do

Public exploit evidence

Original source description

References

Inside the record

Evidence available

Original records

Underlying weaknesses

Timeline

Advisory published

Source updated

Last imported by cve.new

What changed