CVE-2026-20362 | Cisco Finesse Server-Side Request Forgery Vulnerability
Cisco Finesse SSRF vulnerability CVE-2026-20362 allows unauthenticated remote attackers to enumerate infrastructure.
CVE-2026-20362 is a high-severity server-side request forgery (SSRF) vulnerability in Cisco Finesse's web-based management interface discovered by Horizon3 researchers. An unauthenticated remote attacker can send crafted HTTP requests to obtain sensitive information from associated internal services, with a CVSS score of 7.2. No fixes are available as of October 27, 2026, with patches scheduled for January–February 2027.
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The lesson from this incident
Full lessonA high-severity SSRF vulnerability in Cisco Finesse's web management interface allows unauthenticated attackers to send crafted HTTP requests that trick the server into querying internal services, potentially exposing sensitive data from backend systems. The critical issue is compounded by the absence of an available patch, with remediation not expected until January–February 2027 — leaving organizations in a prolonged exposure window of several months. SSRF vulnerabilities are particularly dangerous in contact center environments like Finesse, which often have privileged access to internal APIs, databases, and customer data. This incident underscores the importance of compensating controls when vendor patches are unavailable, and the need for proactive vulnerability tracking and network-level mitigations.
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How we list vendors- Zero trust network access (ZTNA)
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- Vulnerability scanning and prioritisation
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- Network segmentation and microsegmentation
One compromised machine can no longer reach everything else.
Indicators of Compromise
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- cve — CVE-2026-20362