CVE-2026-71328

high

Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.

Vendor / product: Microsoft — visual studio 2022

Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.

CVSS

8.8

8.8 (CVSS v3.1)

CVSS:3.1/AV:N/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: 2026-09-08 18:20

Modified: 2026-09-11 20:27

NVD status: Analyzed

Last synced 2 days ago

Verified against the source API 2026-10-27 06:52 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 / visual_studio_2022 ≥17.14.0 <17.14.40

microsoft / visual_studio_2026 ≥18.9.0 <18.9.3

microsoft / .net ≥8.0.0 <8.0.31, ≥9.0.0 <9.0.20, ≥10.0.0 <10.0.12, 11.0.0

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

NVD CVE API 2.0 — fetched 2026-10-27 06:52 UTC · record ↗