CVE-2026-83914

8.1High

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

8.1High

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: None
Impact: Full C/I/A compromise
Weakness: CWE-416

Impact

Remote attackers can execute arbitrary code over the network without authentication. They need to exploit complex timing or state conditions to trigger the flaw.

Root cause

A use-after-free memory error exists in Microsoft XML.

Affected systems

Versions not listed — check the vendor advisory.

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

Fix & remediation

Install the Microsoft security update for the affected XML component once referenced in the vendor advisory; no interim 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

Use after free in Microsoft XML allows an unauthorized attacker to execute code over a network.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83914

Source: nvd.nist.gov/vuln/detail/CVE-2026-83914