Vulnerabilities CVE-2026-20230

CVE-2026-20230

Medium

Open

KEV

TLP:CLEAR

Cisco Unified Communications Manager Server-Side Request Forgery (SSRF) Vulnerability

NVD CVE.org

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Description

Cisco — Unified Communications Manager — Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) contain a server-side request forgery (SSRF) Vulnerability that could allow an unauthenticated, remote attacker to write files to the underlying operating system that could be used later to elevate to root.

Details

EPSS Score ⓘ: 83.21%

99.7th percentile
Confidence: 100%
CISA KEV
Date Added: Jun 25, 2026
Patch Due: Jun 28, 2026
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.

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