HIGH CISA KEV

CVE-2026-20230

CVSS v3

8.6

HIGH

EPSS Score

0.0 %

exploit probability

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

Description

A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to conduct server-side request forgery (SSRF) attacks through an affected device. This vulnerability is due to improper input validation for specific HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could a

CISA Known Exploited Vulnerability

Date Added: 2026-06-25
Patch Due Date: 2026-06-28
Ransomware Use: Unknown

Technical details

Published: 2026-06-03

Frequently asked questions

What is CVE-2026-20230?

Is CVE-2026-20230 actively exploited?

Yes. CVE-2026-20230 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2026-06-28.

What is the CVSS score for CVE-2026-20230?

CVE-2026-20230 has a CVSS v3 base score of 8.6 (HIGH severity).

Is CVE-2026-20230 affecting your environment?

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