CVE-2026-83909

LOWCVSS 4.7 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Exposure of sensitive system information to an unauthorized control sphere in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.

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0.0/ 10 priority

Sources & remediation

Other references

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83909

Weakness type (CWE)

CWE-497

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Referenced assets1 URL

By indicator

https://vulnipulse.com/advisories/microsoft-cve-2026-83909

Full discourse1 post

VulniPulse@vulnipulse22h
CVE advisory: CVE-2026-83909 - microsoft: Windows Win32 Kernel Subsystem Information Disclosure Vulnerability. https://vulnipulse.com/advisories/microsoft-cve-2026-83909 #CVE #CyberSecurity #Microsoft #WindowsServer
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