CVE-2026-71328: .NET and Visual Studio Remote Code Execution Vulnerability
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-71328
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-713280.58% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 46% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-71328 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- high[UPDATE] [hoch] Microsoft Entwicklerwerkzeuge: Mehrere Schwachstellen ermöglichen Privilegieneskalationcert-bund
- highGHSA-63gh-g2x5-x69v: Microsoft Security Advisory CVE-2026-71328 – .NET and Visual Studio Remote Code Execution…ghsa
- unknownMultiples vulnérabilités dans les produits Microsoft (09 septembre 2026)cert-fr-avis
- unknownMultiples vulnérabilités dans Microsoft .Net (09 septembre 2026)cert-fr-avis
- highCVE-2026-71328: Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code ov…nvd
Recent advisories for .NET and Visual
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- highGHSA-2j8r-3c22-8565: Microsoft Security Advisory CVE-2026-69522 – .NET and Visual Studio Remote Code Execution…ghsa · 2026-09-09
- highGHSA-527h-q9f6-p7qx: Microsoft Security Advisory CVE-2026-69439 – .NET and Visual Studio Elevation of Privileg…ghsa · 2026-09-09
- highGHSA-63gh-g2x5-x69v: Microsoft Security Advisory CVE-2026-71328 – .NET and Visual Studio Remote Code Execution…ghsa · 2026-09-09
- highGHSA-4qhr-qf46-fcrx: Duplicate Advisory: Microsoft Security Advisory CVE-2026-71328 – .NET and Visual Studio R…ghsa · 2026-09-08
- highGHSA-q72m-f2r4-w4cw: Duplicate Advisory: Microsoft Security Advisory CVE-2026-69522 – .NET and Visual Studio R…ghsa · 2026-09-08
- highGHSA-mqvm-gmc4-6rv2: Duplicate Advisory: Microsoft Security Advisory CVE-2026-69439 – .NET and Visual Studio E…ghsa · 2026-09-08
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