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CVE-2026-69741

Windows Spaceport.sys Information Disclosure Vulnerability

No known exploitation. EPSS puts it in the 35th percentile. Fixed versions are out.

CVSS 3.15.5MediumEPSS percentile35th0.4% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix4 products8 fixed builds listed below
Check it yourself

OpenVAS · 12 checks

e.g. OID 1.3.6.1.4.1.25623.1.3.0.11923.0.5122882.494846484650485152564653545050

Run the check

Published Updated Sources: CVE.org, NVD

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • Microsoft Windows 10 Version 21H2Affected: ≥ 10.0.19044.0, < 10.0.19044.7725Upgrade to: 10.0.19044.7725Affected: ≥ 10.0.19045.0, < 10.0.19045.7725Upgrade to: 10.0.19045.7725Stated by: CVE record
  • Microsoft Windows 11 version 23H2Affected: ≥ 10.0.22631.0, < 10.0.22631.7582Upgrade to: 10.0.22631.7582Affected: ≥ 10.0.26100.0, < 10.0.26100.9445Upgrade to: 10.0.26100.9445Affected: ≥ 10.0.26200.0, < 10.0.26200.9445Upgrade to: 10.0.26200.9445Affected: ≥ 10.0.28000.0, < 10.0.28000.2954Upgrade to: 10.0.28000.2954Stated by: CVE record
  • Microsoft Windows Server 2022Affected: ≥ 10.0.20348.0, < 10.0.20348.5622Upgrade to: 10.0.20348.5622Stated by: CVE record
  • Microsoft Windows Server 2025Affected: ≥ 10.0.26100.0, < 10.0.26100.33438Upgrade to: 10.0.26100.33438Stated by: CVE record

Versions as the sources state them. Full version matrix after sign-in

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to disclose information locally.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS35th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

0.4% chance of exploitation activity in the next 30 days, which ranks it in the 35th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

8 events over 14 days, from the signal feeds we watch.

  1. Patch availablerecord updated
  2. OpenVAS check added
  3. Publishedweakness classified, att&ck mapped, record updated, record updated

Affected products

And 14 more affected products. See all after sign-in

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

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

Scored 5.5 by NVD.

How it is reached

  • Attack Vector LocalRequires local access to the vulnerable system (e.g. local login, malicious file)
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required LowRequires basic user-level privileges
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality HighTotal information disclosure — all data in the component is compromised
  • Integrity NoneNo integrity impact
  • Availability NoneNo availability impact

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

References in the record

In the news

Watch the software you run.

My Stack ranks new CVEs for your products by real-world exploitation, so the next serious one reaches you without reading every advisory.

We'll flag the next CVE, public exploit or patch for Windows 10 Version 21H2, not every advisory.