Medium severity · published Apr 1, 2026
CVE-2026-20089
Cisco Integrated Management Controller Cross-Site Scripting Vulnerability
4.8
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CE
Cisco Enterprise NFV Infrastructure Software · Cisco
4.1.1; 3.9.1; 3.5.2; 3.12.2; 3.6.2; 3.9.2; +34 more · source: vendor
CU
Cisco Unified Computing System (Standalone) · Cisco
4.0(2g); 3.1(2i); 3.1(1d); 4.0(4i); 4.1(1c); 4.0(2c); +34 more · source: vendor
CU
Cisco Unified Computing System E-Series Software (UCSE) · Cisco
3.2.7; 3.2.6; 3.2.4; 3.2.10; 3.2.2; 3.2.3; +34 more · source: vendor
EN
Enterprise Nfv Infrastructure Software · Cisco
3.3.1; 3.4.1; 3.5.1; 3.5.2; 3.6.1; 3.6.2; +34 more · source: NVD
UC
Unified Computing System · Cisco
3.1(1d); 3.1(2b); 3.1(2c); 3.1(2d); 3.1(2e); 3.1(2g); +34 more · source: NVD
UC
Unified Computing System E-series Software · Cisco
2.0.0; 2.1.0; 2.2.1; 2.2.2; 2.3.1; 2.3.2; +34 more · source: NVD
Affected product
CE
Cisco Enterprise NFV Infrastructure Software
Cisco
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-20089
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-20089
Vendor Advisory
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-xss-A2tkgVAB
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