[NEW] [high] Microsoft Azure, Copilot, Exchange, Surface: Multiple vulnerabilities

CSIRTS triage

What

Multiple vulnerabilities can be exploited to escalate privileges, execute arbitrary code, manipulate data, or disclose confidential information.

Who is affected

Users of Microsoft Azure, Microsoft 365 Copilot, Microsoft Exchange, and Microsoft Apps Surface.

Urgency

Remediation is high urgency due to the severity and potential impact of the vulnerabilities.

Action

Update to the latest versions of the affected Microsoft products.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source

CERT-Bund (BSI) Security Advisories (DE · national-cert · site)

Severity

high

Published

2026-07-27

Exploitation

Not in CISA KEV at last sync

Language

Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2502

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-2026-354250.48% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all scored CVEs.
• Low exploitation riskCVE-2026-491590.55% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 43% of all scored CVEs.
• Low exploitation riskCVE-2026-561600.65% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 48% of all scored CVEs.
• Low exploitation riskCVE-2026-561630.90% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 56% of all scored CVEs.
• Low exploitation riskCVE-2026-561650.72% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 50% of all scored CVEs.
• Low exploitation riskCVE-2026-561670.41% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 33% of all scored CVEs.
• Low exploitation riskCVE-2026-571060.90% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 56% of all scored CVEs.
• Low exploitation riskCVE-2026-582750.67% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 49% of all scored CVEs.
• Low exploitation riskCVE-2026-586300.81% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 54% of all scored CVEs.
• Low exploitation riskCVE-2026-628250.70% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 49% of all scored CVEs.

Referenced CVEs

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

• criticalCVE-2026-58630: Improper access control in Azure App Service allows an unauthorized attacker to elevate privil…nvd
• criticalCVE-2026-57106: Server-side request forgery (ssrf) in Data Quality allows an unauthorized attacker to elevate …nvd
• criticalCVE-2026-56163: Missing authentication for critical function in Microsoft Azure Kubernetes Service allows an u…nvd
• criticalCVE-2026-62825: Improper authentication in Azure Key Vault allows an unauthorized attacker to elevate privileg…nvd
• criticalCVE-2026-58275: Missing authorization in Azure DNS allows an unauthorized attacker to elevate privileges over …nvd
• criticalCVE-2026-56191: Improper authentication in Microsoft Exchange Online allows an unauthorized attacker to perfor…nvd
• highCVE-2026-56167: Server-side request forgery (ssrf) in Azure AI Search allows an authorized attacker to elevate…nvd
• criticalCVE-2026-56165: Heap-based buffer overflow in Microsoft Account allows an unauthorized attacker to execute cod…nvd
• criticalCVE-2026-56160: Improper authorization in Azure Red Hat OpenShift (ARO) allows an authorized attacker to eleva…nvd
• criticalCVE-2026-54120: Improper input validation in Microsoft Surface allows an authorized attacker to execute code o…nvd
• criticalCVE-2026-50517: Deserialization of untrusted data in M365 Copilot allows an authorized attacker to execute cod…nvd
• mediumCVE-2026-49159: Exposure of sensitive information to an unauthorized actor in Microsoft Graph allows an author…nvd

Recent advisories for Microsoft Azure

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.

• unknownVulnérabilité dans Microsoft Azure (31 juillet 2026)cert-fr-avis · 2026-07-31
• high[NEW] [high] Microsoft Azure Portal: Vulnerability allows information disclosurecert-bund · 2026-07-28
• criticalCVE-2026-56163: Missing authentication for critical function in Microsoft Azure Kubernetes Service allows an u…nvd · 2026-07-24
• criticalCVE-2025-66390: In Microsoft Azure API Management through 2025-10-17, when self-service signup (username/passw…nvd · 2026-07-21
• unknownCVE-2026-54733: The Microsoft 365 and Microsoft Entra ID Plugins for Moodle provide Office 365 and Azure Activ…nvd · 2026-07-16
• high[NEW] [high] Microsoft Azure: Multiple vulnerabilitiescert-bund · 2026-07-16

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