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

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

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audit trail / provenance2

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severity.upliftheuristicn/a
CVE or advisory identifiers detected — floor raised to at least high.
severity.upliftheuristicn/a
Active exploitation / in-the-wild language detected — floor raised to at least high.

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Curated Jun 23, 2026 by Aidan Duffy, Threat intelligence editor, AHackaday./Methodology/Sources verified.

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cross-platform summaryLive chatter is accelerating; analysts are actively validating impact.