[UPDATE] [critical] Microsoft Windows products: Multiple vulnerabilities
An attacker can exploit multiple vulnerabilities in Microsoft Windows products to execute arbitrary code, escalate privileges, conduct a Denial of Service attack, disclose information, and bypass security measures.
CSIRTS triage
- What
- Multiple vulnerabilities allow an attacker to execute arbitrary code, escalate privileges, conduct denial of service attacks, disclose information, and bypass security measures.
- Who is affected
- All deployments of Microsoft Windows products are affected.
- Urgency
- Remediation is urgent due to the critical severity and confirmed exploitation.
- Action
- Apply the latest security updates provided by Microsoft.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1489
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.
- Moderate exploitation riskCVE-2026-428975.6% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 92% of all scored CVEs.
- Low exploitation riskCVE-2025-545180.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all scored CVEs.
- Low exploitation riskCVE-2026-215300.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all scored CVEs.
- Low exploitation riskCVE-2026-321610.30% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all scored CVEs.
- Low exploitation riskCVE-2026-321700.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all scored CVEs.
- Low exploitation riskCVE-2026-322090.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all scored CVEs.
- Low exploitation riskCVE-2026-338340.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 19% of all scored CVEs.
- Moderate exploitation riskCVE-2026-338352.1% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 80% of all scored CVEs.
- Moderate exploitation riskCVE-2026-338371.8% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 76% of all scored CVEs.
- Low exploitation riskCVE-2026-338380.40% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 32% of all scored CVEs.
Referenced CVEs
+12 more CVEs referenced in this advisory.
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- high[UPDATE] [high] AMD Processor: Multiple vulnerabilitiescert-bund
- unknownexploitedSecurity Alert: Microsoft Releases June 2026 Security Updatesjpcert
- unknownexploited[Update] Vulnerability in Microsoft Exchange Server (May 15, 2026)cert-fr-alerte
- criticalexploitedCVE-2026-42897: Microsoft Exchange Server Cross-Site Scripting Vulnerabilitycisa-kev
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