Multiple Vulnerabilities in Microsoft Products (June 22, 2026)
Multiple vulnerabilities have been discovered in Microsoft products. They allow an attacker to cause a breach of data confidentiality and an unspecified security issue by the vendor.
CSIRTS triage
- What
- Multiple vulnerabilities have been discovered in Microsoft products that can lead to data confidentiality breaches.
- Who is affected
- Deployments of various Microsoft products are affected.
- Urgency
- Remediation is necessary due to the potential for data breaches.
- Action
- Apply the latest security updates for affected Microsoft products.
AI-assisted analysis generated from the source advisory — verify against the original.
Details
Original advisory: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0792/
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-2026-96980.38% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 30% of all scored CVEs.
- Low exploitation riskCVE-2026-454460.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all scored CVEs.
- Low exploitation riskCVE-2026-341830.51% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all scored CVEs.
- Low exploitation riskCVE-2026-427680.35% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all scored CVEs.
- Low exploitation riskCVE-2026-505190.51% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-9698 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-45446 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-34183 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-42768 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-50519 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- high[UPDATE] [high] cPanel cPanel/WHM: Multiple vulnerabilitiescert-bund
- high[UPDATE] [high] OpenSSL: Multiple Vulnerabilitiescert-bund
- unknownMultiple vulnerabilities in Tenable Identity Exposure (June 24, 2026)cert-fr-avis
- lowCVE-2026-42768: Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt()msrc
- mediumCVE-2026-45446: Incorrect Tag Processing for Empty Messages in AES-GCM-SIV and AES-SIV modesmsrc
- highCVE-2026-9698: DBI versions before 1.648 for Perl saved errors in a limited-sized buffermsrc
- mediumCVE-2026-50519: Microsoft Visual Studio Code CoPilot Chat Security Feature Bypass Vulnerabilitymsrc
- highCVE-2026-34183: Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handlermsrc
Recent advisories for Microsoft Products
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.
- critical[UPDATE] [critical] Microsoft Windows products: Multiple vulnerabilitiescert-bund · 2026-07-09
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