Multiple Vulnerabilities in Microsoft Products (June 22, 2026)

unknownCVE-2026-9698 CVE-2026-45446 CVE-2026-34183 CVE-2026-42768 CVE-2026-50519

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

vendor: Microsoft Information disclosureOther

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

Source: CERT-FR Avis de sécurité (FR · national-cert · site)
Severity: unknown
Published: 2026-06-22
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

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-2026-96980.46% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 38% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-454460.37% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 30% of all EPSS-scored CVEs.
Moderate exploitation riskCVE-2026-341831.0% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 62% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-427680.58% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 45% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-505190.92% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 58% of all EPSS-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.

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.

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