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High 8.1Published Oct 13, 2026
CVE-2026-105005Windows Schannel Remote Code Execution Vulnerability
Updated under an hour ago ()
Does this affect you?
It affects Microsoft Windows 11 version 26H1. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.67%, higher than 51% of scored CVEs.
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Out-of-bounds write in Windows Schannel allows an unauthorized attacker to execute code over a network.
- CVSS
- 8.1 HIGH (v3.1, CNA)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
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.67% (percentile 51)
- Assigned by
- microsoft
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 13, 2026
Affected products
Microsoft Windows 11 version 26H1 microsoft:windows_11_26h1 | from 10.0.28000.0 before 10.0.28000.3231 | CNA record |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105005vendor-advisory, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.