Multiples vulnérabilités dans Microsoft .Net (09 septembre 2026)
De multiples vulnérabilités ont été découvertes dans Microsoft .Net. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance.
Details
Original advisory: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1146/
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.
- Moderate exploitation riskCVE-2026-698061.8% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 77% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-695220.80% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 55% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-694390.74% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 52% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-586490.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 19% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-693040.77% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 53% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-71328 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-69806 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-69522 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-69439 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-58649 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-69304 | 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
- unknownUSN-8740-1: .NET vulnerabilitiesubuntu
- mediumGHSA-8cp2-47hg-mfgh: Microsoft Security Advisory CVE-2026-69304 – ASP.NET Core Denial of Service Vulnerabilityghsa
- highGHSA-2j8r-3c22-8565: Microsoft Security Advisory CVE-2026-69522 – .NET and Visual Studio Remote Code Execution…ghsa
- highGHSA-527h-q9f6-p7qx: Microsoft Security Advisory CVE-2026-69439 – .NET and Visual Studio Elevation of Privileg…ghsa
- 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
- unknownNCSC-2026-0351 [1.00] [M/H] Kwetsbaarheden verholpen in Microsoft Developer Toolsncsc-nl
- highCVE-2026-71328: Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code ov…nvd
- highCVE-2026-69806: Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attack…nvd
- highCVE-2026-69522: Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code ov…nvd
- highCVE-2026-69439: Heap-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to elevat…nvd
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