CVE-2026-20089: A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with…

CVE-2026-20089 · Severity: medium · CVSS 4.8 · Published 2026-04-01

A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with administrative privileges to conduct a stored XSS attack against a user of the interface. This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the browser of the targeted user or access sensitive, browser-based information.

Technologies: Cisco Enterprise Nfv Infrastructure Software, Cisco Unified Computing System, Cisco Unified Computing System E-Series Software. Vendors: Cisco.

Quick answers

Is CVE-2026-20089 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-20089 being exploited in the wild.
How severe is CVE-2026-20089?
Medium severity, with a CVSS score of 4.8, published 1 April 2026.
Which products and versions are affected?
Cisco Enterprise Nfv Infrastructure Software, Cisco Unified Computing System, Cisco Unified Computing System E-Series Software. The advisory does not name versions.
Is there a fix for CVE-2026-20089?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-20089?
Check whether you run Cisco Enterprise Nfv Infrastructure Software, Cisco Unified Computing System or Cisco Unified Computing System E-Series Software. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Cisco Enterprise Nfv Infrastructure Software
  • Cisco Unified Computing System
  • Cisco Unified Computing System E-Series Software

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