Cisco Unified CM flaw CVE-2026-20230 now exploited in attacks

BleepingComputer

June 23, 2026 at 9:48 PM

Actively Exploited

Overview

A serious vulnerability, identified as CVE-2026-20230, has been discovered in Cisco's Unified Communications Manager Server. This Server-Side Request Forgery (SSRF) flaw is currently being exploited by attackers, raising concerns for organizations using this software. The vulnerability could allow malicious actors to manipulate requests sent from the server, potentially leading to unauthorized access to sensitive systems. Companies that rely on Cisco's Unified Communications infrastructure need to prioritize patching their systems to protect against these active exploits. As the situation evolves, it is crucial for affected users to stay informed and take immediate action to mitigate risks.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: Cisco Unified Communications Manager Server
Action Required: Users should apply the latest patches provided by Cisco for the Unified Communications Manager Server.
Timeline: Newly disclosed

Original Article Summary

A high-severity SSRF vulnerability, tracked as CVE-2026-20230, in Cisco Unified Communications Manager Server is now being exploited in attacks. [...]

Impact

Cisco Unified Communications Manager Server

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Newly disclosed

Remediation

Users should apply the latest patches provided by Cisco for the Unified Communications Manager Server. Regularly check for updates and ensure that all configurations are secure to prevent exploitation.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to CVE, Cisco, Vulnerability.

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