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CVE-2021-31834

MEDIUM · CVSS 5.4EPSS 0.5%EU EUVD

Stored Cross-Site Scripting vulnerability in McAfee ePolicy Orchestrator (ePO) prior to 5.10 Update 11 allows ePO administrators to inject arbitrary web script or HTML via multiple parameters where the administrator's entries were not correctly sanitized.

Key facts

CVSS score
5.4 (v3.1)
Severity
MEDIUM
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-79
EPSS score
0.5% (38th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2021-18709)
Published
October 22, 2021
NVD last modified
June 17, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2021-18709 in the EU Vulnerability Database. Last updated in EUVD on August 3, 2024.

View on the EU Vulnerability Database

Affected products

  • mcafee / epolicy orchestrator
  • mcafee / epolicy orchestrator
  • mcafee / epolicy orchestrator
  • mcafee / epolicy orchestrator
  • mcafee / epolicy orchestrator
  • mcafee / epolicy orchestrator
  • mcafee / epolicy orchestrator
  • mcafee / epolicy orchestrator
  • mcafee / epolicy orchestrator
  • mcafee / epolicy orchestrator
  • mcafee / epolicy orchestrator
  • mcafee / epolicy orchestrator

Certified products that may be affected

2 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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CVE-2021-31834: MEDIUM severity (CVSS 5.4)