CVE-2026-20089

MEDIUMCVSS 4.8/10EPSS 0.24%

Last modified

CVE-2026-20089 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. 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. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
0.24%

14.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoEnterprise Nfv Infrastructure Software3.3.1
CiscoEnterprise Nfv Infrastructure Software3.4.1
CiscoEnterprise Nfv Infrastructure Software3.5.1
CiscoEnterprise Nfv Infrastructure Software3.5.2
CiscoEnterprise Nfv Infrastructure Software3.6.1
CiscoEnterprise Nfv Infrastructure Software3.6.2
CiscoEnterprise Nfv Infrastructure Software3.6.3
CiscoEnterprise Nfv Infrastructure Software3.7.1
CiscoEnterprise Nfv Infrastructure Software3.8.1
CiscoEnterprise Nfv Infrastructure Software3.9.1
CiscoEnterprise Nfv Infrastructure Software3.9.2
CiscoEnterprise Nfv Infrastructure Software3.10.1
CiscoEnterprise Nfv Infrastructure Software3.10.2
CiscoEnterprise Nfv Infrastructure Software3.10.3
CiscoEnterprise Nfv Infrastructure Software3.11.1
CiscoEnterprise Nfv Infrastructure Software3.11.2
CiscoEnterprise Nfv Infrastructure Software3.11.3
CiscoEnterprise Nfv Infrastructure Software3.12.1
CiscoEnterprise Nfv Infrastructure Software3.12.1a
CiscoEnterprise Nfv Infrastructure Software3.12.1b
CiscoEnterprise Nfv Infrastructure Software3.12.2
CiscoEnterprise Nfv Infrastructure Software3.12.3
CiscoEnterprise Nfv Infrastructure Software4.1.1
CiscoEnterprise Nfv Infrastructure Software4.1.2
CiscoEnterprise Nfv Infrastructure Software4.2.1
CiscoEnterprise Nfv Infrastructure Software4.2.2
CiscoEnterprise Nfv Infrastructure Software4.4.1
CiscoEnterprise Nfv Infrastructure Software4.4.2
CiscoEnterprise Nfv Infrastructure Software4.4.3
CiscoEnterprise Nfv Infrastructure Software4.5.1
CiscoEnterprise Nfv Infrastructure Software4.6.1
CiscoEnterprise Nfv Infrastructure Software4.6.2
CiscoEnterprise Nfv Infrastructure Software4.6.2-fc2
CiscoEnterprise Nfv Infrastructure Software4.6.2-fc3
CiscoEnterprise Nfv Infrastructure Software4.6.3
CiscoEnterprise Nfv Infrastructure Software4.6.3-fc4
CiscoEnterprise Nfv Infrastructure Software4.6.4
CiscoEnterprise Nfv Infrastructure Software4.6.5-es1
CiscoEnterprise Nfv Infrastructure Software4.7.1
CiscoEnterprise Nfv Infrastructure Software4.8.1
CiscoEnterprise Nfv Infrastructure Software4.8.2
CiscoEnterprise Nfv Infrastructure Software4.9.1
CiscoEnterprise Nfv Infrastructure Software4.9.2
CiscoEnterprise Nfv Infrastructure Software4.9.2-fc5
CiscoEnterprise Nfv Infrastructure Software4.9.3
CiscoEnterprise Nfv Infrastructure Software4.9.4
CiscoEnterprise Nfv Infrastructure Software4.9.4-es8
CiscoEnterprise Nfv Infrastructure Software4.9.4-es9
CiscoEnterprise Nfv Infrastructure Software4.9.4-fc3
CiscoEnterprise Nfv Infrastructure Software4.9.5

Showing 50 of 261 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-20089?
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.
How severe is CVE-2026-20089?
CVE-2026-20089 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.
How do I fix CVE-2026-20089?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST