Skip to main content

CVE-2026-105005: CWE-787: Out-of-bounds Write in Microsoft Windows 11 version 26H1

0
High
VulnerabilityCVE-2026-105005cvecve-2026-105005cwe-787
Published: 10/13/2026 (10/13/2026, 19:01:36 UTC)
Source: CVE Database V5
Vendor/Project: Microsoft
Product: Windows 11 version 26H1

Description

Out-of-bounds write in Windows Schannel allows an unauthorized attacker to execute code over a network.

CVSS v3.1

Score 8.1high

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Affected software

Microsoft

Windows 11 version 26H1

Affected versions
>=10.0.28000.0 <10.0.28000.3231

Technical Details

Data Version
5.2
Assigner Short Name
microsoft
Date Reserved
2026-10-02T20:51:38.831Z
Cvss Version
3.1
State
PUBLISHED
Remediation Level
official-fix
Vendor Advisory Urls
[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105005","vendor":"Microsoft"}]

Threat ID: 6ace84982cdf04f6569f0275

Added to database: 10/13/2026, 19:20:56 UTC

Last updated: 10/13/2026, 22:50:42 UTC

Views: 3

Community Reviews

0 reviews

Crowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.

Sort by
Loading community insights…

Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.

Actions

Please log in to the Console to use AI analysis features.

Need more coverage?

Upgrade to Pro Console for AI refresh and higher limits.

For incident response and remediation, OffSeq services can help resolve threats faster.

Latest Threats

Breach by OffSeqOFFSEQFRIENDS — 25% OFF

Check if your credentials are on the dark web

Instant breach scanning across billions of leaked records. Free tier available.

Scan now
OffSeq TrainingCredly Certified

Lead Pen Test Professional

Technical5-day eLearningPECB Accredited
View courses