CVE-2026-83845

8.4High

Published 13 Oct 2026 · NVD status: Awaiting Analysis · AI triage by gemini-3.8-flash

8.4High

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None
Impact: High impact on confidentiality, integrity
Weakness: CWE-290

Impact

A local attacker with standard user privileges can spoof identities or system components to escalate control across security boundaries. They require existing local account access on the host to execute the attack.

Root cause

Improper privilege management in the Windows Internet component (wininet.dll) fails to properly enforce identity verification checks locally.

Affected systems

Versions not listed — check the vendor advisory.

CVSS v3.1 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Fix & remediation

Install the latest Microsoft security update addressing wininet.dll from MSRC; no interim mitigations or workarounds are currently documented.

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD description

Improper privilege management in Windows Internet (wininet.dll) allows an authorized attacker to perform spoofing locally.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83845

Source: nvd.nist.gov/vuln/detail/CVE-2026-83845