Defender briefing

0 new and 0 changed records

3 recent high-priority records and 0 Sandworm-linked records are present in the current briefing window.

Machine-curated from normalized evidence; analyst review recommended.

High-priority signal

high

CVE-2026-58644: Microsoft SharePoint Deserialization of Untrusted Data Vulnerability

Microsoft SharePoint contains a deserialization of untrusted data vulnerability that allows an unauthorized attacker to execute code over a network. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE-2026-58644EPSS 1.5%MicrosoftSharePoint
CISA KEV ↗ · unattributed attribution
high

CVE-2026-25089: Fortinet FortiSandbox OS Command Injection Vulnerability

Fortinet FortiSandbox, FortiSandbox Cloud, and FortiSandbox PaaS contain an OS command injection vulnerability that allows an unauthenticated attacker to execute unauthorized commands via specifically crafted HTTP requests. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE-2026-25089EPSS 36.1%FortiSandboxFortinet
CISA KEV ↗ · unattributed attribution
high

CVE-2026-39808: Fortinet FortiSandbox OS Command Injection Vulnerability

Fortinet FortiSandbox contains an OS command injection vulnerability that could allow an unauthenticated attacker to execute unauthorized code or commands via crafted HTTP requests. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE-2026-39808EPSS 84.2%FortiSandboxFortinet
CISA KEV ↗ · unattributed attribution

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