All vulnerabilities
CVE-2026-20230

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

Cisco Unified Communications ManagerNetwork & edge
Open in ThreatlineRecord JSON
CVSS
8.6High
ExploitationExploited in the wildAdded to KEV 25 Jun 2026CISA KEV
Exploit odds (EPSS)88.2%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline28 Jun 2026Remediation due date for US federal agenciesCISA KEV
CISA required actionApply 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. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 3 Jun 2026, 16:09 UTCPublishedCVE List
  2. 25 Jun 2026Added to CISA KEVCISA KEV

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.

Text from CVE List

Affected versions 22

  • Cisco Unified Communications Manageraffected: 14CVE List
  • Cisco Unified Communications Manageraffected: 14SU1CVE List
  • Cisco Unified Communications Manageraffected: 14SU2CVE List
  • Cisco Unified Communications Manageraffected: 14SU3CVE List
  • Cisco Unified Communications Manageraffected: 15CVE List
  • Cisco Unified Communications Manageraffected: 15SU1CVE List
  • Cisco Unified Communications Manageraffected: 14SU4CVE List
  • Cisco Unified Communications Manageraffected: 14SU4aCVE List
  • Cisco Unified Communications Manageraffected: 15SU1aCVE List
  • Cisco Unified Communications Manageraffected: 15SU2CVE List
  • Cisco Unified Communications Manageraffected: 15.0.1.13010-1CVE List
  • Cisco Unified Communications Manageraffected: 15.0.1.13011-1CVE List
  • Cisco Unified Communications Manageraffected: 15.0.1.13012-1CVE List
  • Cisco Unified Communications Manageraffected: 15.0.1.13013-1CVE List
  • Cisco Unified Communications Manageraffected: 15.0.1.13014-1CVE List
  • Cisco Unified Communications Manageraffected: 15.0.1.13015-1CVE List
  • Cisco Unified Communications Manageraffected: 15.0.1.13016-1CVE List
  • Cisco Unified Communications Manageraffected: 15.0.1.13017-1CVE List
  • Cisco Unified Communications Manageraffected: 15SU3aCVE List
  • Cisco Unified Communications Manageraffected: 14SU5CVE List
  • Cisco Unified Communications Manageraffected: 15SU4CVE List
  • Cisco Unified Communications Manageraffected: 15SU4aCVE List

References 5