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Vulnerabilities

Vulnerability · CVE-2026-20088

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…

Published Apr 1, 2026 · catalog updated Aug 28, 2026 · enterprise nfv infrastructure software

Check if you run it

No confirmed exploitation is on record for CVE-2026-20088. EPSS is 0.22%. Act only if a listed version of enterprise nfv infrastructure software is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium4.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.22%
Remediation
Advisory link
Affected products
cpe cisco/enterprise nfv infrastructure software · cpe cisco/unified computing system · cpe cisco/unified computing system e-series software

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe cisco/enterprise nfv infrastructure software3.3.1
  • cpe cisco/enterprise nfv infrastructure software3.4.1
  • cpe cisco/enterprise nfv infrastructure software3.5.1
  • cpe cisco/enterprise nfv infrastructure software3.5.2
  • cpe cisco/enterprise nfv infrastructure software3.6.1
  • cpe cisco/enterprise nfv infrastructure software3.6.2
  • cpe cisco/enterprise nfv infrastructure software3.6.3
  • cpe cisco/enterprise nfv infrastructure software3.7.1
  • cpe cisco/unified computing system3.1\(1d\)
  • cpe cisco/unified computing system e-series software2.0.0

How to fix CVE-2026-20088

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-20088. EPSS is 0.22%. Act only if a listed version of enterprise nfv infrastructure software is installed.

Which versions are affected?

Compare what you have installed with cisco/enterprise nfv infrastructure software 3.3.1; cisco/enterprise nfv infrastructure software 3.4.1; cisco/enterprise nfv infrastructure software 3.5.1; cisco/enterprise nfv infrastructure software 3.5.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-79: Cross-site Scripting (XSS). EPSS 0.22%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Cisco security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 1, 2026 · NIST NVD

    Detected

    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 succes

  2. Aug 28, 2026 · NIST NVD

    Updated

    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 succes

Sources

  • CVE.orgVulnerability recordCVE-2026-20088

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-20088

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-20088

    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. A

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.