CVE-2026-58649

Medium6.5Published on September 8, 2026

Origin validation error in .NET allows an unauthorized attacker to disclose information over a network.

CVSS score6.5 / 10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Weakness type (CWE)CWE-346

Microsoft Patches 966 Flaws as Two Windows Zero-Days Come Under Active Attack

Microsoft fixed 966 flaws in record September Patch Tuesday, including two exploited Windows privilege-escalation zero-days leading to SYSTEM access.

This product uses the NVD API but is not endorsed or certified by the NVD.