CVE-2026-50649

high

Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code locally.

Vendor / product: Microsoft — .net framework

Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code locally.

CVSS

7.8

7.8 (CVSS v3.1)

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

Severity source: NVD CVSS v3.1 (secure@microsoft.com)

Timeline (UTC)

Published: 2026-07-14 20:17

Modified: 2026-10-28 20:17

NVD status: Analyzed

Last synced 14 hours ago

Verified against the source API 2026-10-28 20:34 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

microsoft / .net_framework 4.8.1, 4.8, 4.6.2, 4.7, 4.7.1, 4.7.2

microsoft / .net ≥8.0.0 <8.0.29, ≥9.0.0 <9.0.18

microsoft / visual_studio_2026 ≥18.7.0 <18.7.4

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

NVD CVE API 2.0 — fetched 2026-10-28 20:34 UTC · record ↗