CVE-2026-69467

Local privilege escalation via stack buffer overflow

Published Sep 8, 2026 · Updated Sep 9, 2026

Stack-based buffer overflow in Microsoft Graphics Component on affected Windows 10 and 11 builds allows local users to elevate privileges. Microsoft has not disclosed the affected Graphics Component routine, the malformed input it accepts, or the unchecked operation that overruns a stack buffer. Exploitation requires low-privileged local access and no user interaction, and successful exploitation grants SYSTEM privileges.

CVSS severity7.8
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in Microsoft Graphics Component on affected Windows 10 and 11 builds allows local users to elevate privileges. Microsoft has not disclosed the affected Graphics Component routine, the malformed input it accepts, or the unchecked operation that overruns a stack buffer. Exploitation requires low-privileged local access and no user interaction, and successful exploitation grants SYSTEM privileges.

The record

CVE
CVE-2026-69467
Published
Sep 8, 2026
Updated
Sep 9, 2026
Vendor
Microsoft
Product
Windows 11, version 25H2
Classifications
CWE-121, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.26200.0 <10.0.26200.9445

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Windows 11, version 25H2version=10.0.26200.0 <10.0.26200.9445
Microsoft · Windows 11, version 24H2version=10.0.26100.0 <10.0.26100.9445
Microsoft · Windows 10 Version 21H2version=10.0.19044.0 <10.0.19044.7725
Microsoft · Windows 10 Version 22H2version=10.0.19045.0 <10.0.19045.7725
Microsoft · Windows 11, version 26H1version=10.0.28000.0 <10.0.28000.2954
Microsoft · Windows 11 Version 23H2version=10.0.22631.0 <10.0.22631.7582

Published CVSS scores

6.8MicrosoftCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
7.8MicrosoftCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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