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9.8 — CRITICAL

Cisco Patches Four Critical Identity Services, Webex Flaws Enabling Code Execution

📅 16 April 2026 at 11:27 UTC📰 The Hacker NewsView original source ↗

Cisco has announced patches to address four critical security flaws impacting Identity Services and Webex Services that could result in arbitrary code execution and allow an attacker to impersonate any user within the service. The details of the vulnerabilities are below - CVE-2026-20184 (CVSS score: 9.8) - An improper certificate validation in the integration of single sign-on (SSO)

🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview

Cisco has identified four critical security flaws in its Identity Services and Webex Services, allowing an attacker to impersonate any user within the service through arbitrary code execution. These vulnerabilities have been patched by Cisco, but users are advised to apply the patches as soon as possible.

⚙️Technical Details
CVEs
CVE-2026-20184
Affected Systems
Cisco Webex ServicesControl Hub
Attack Vectors
NETWORK
💥Impact Assessment
Severity: C
Who Is at Risk
Users of Cisco Webex Services and Identity Services
🛡️Recommended Actions
1Apply the patches released by Cisco as soon as possible to prevent arbitrary code execution.
2Monitor system logs for suspicious activity related to single sign-on (SSO) integration.
3Verify certificate validation in SSO integrations to prevent improper certificate validation.
📦Affected Products
Cisco Webex ServicesControl Hub
🔐NVD Verified DataVERIFIED
CVE-2026-20184 ↗CVSS 9.8 — CRITICAL
Attack Vector
NETWORK
Complexity
LOW
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-295

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