KEV Entry

CVE-2026-20230

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2026-20230

2026-06-25 00:00 UTC

Timestamps

2026-06-25

2026-06-25

Scope

KEV entry: Cisco Unified Communications Manager Server-Side Request Forgery (SSRF) Vulnerability | Affected: Cisco / Unified Communications Manager | Description: 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. | 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. | Due date: 2026-06-28 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://www.cisco.com/c/en/us/support/docs/csa/cisco-sa-cucm-ssrf-cXPnHcW.html ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-20230

References
  • {'id': 'CVE-2026-20230', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-20230'}

7a7353f1-c2d9-493b-9478-b47a538ae3ab

405284c2-e461-4670-8979-7fd2c9755a60

2026-06-25 20:00 UTC

2026-06-25 20:00 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-918"
  ],
  "date_added": "2026-06-25",
  "due_date": "2026-06-28",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Unknown",
  "product": "Unified Communications Manager",
  "vendorProject": "Cisco",
  "vulnerabilityName": "Cisco Unified Communications Manager Server-Side Request Forgery (SSRF) Vulnerability"
}
 -
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