What is CVE-2021-1250?

CVE-2021-1250 is a medium-severity vulnerability in Cisco Data Center Network Manager, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2021-01-20.

How severe is CVE-2021-1250?

Medium severity. CVSS v3 base score is 6.5 out of 10.

XSS in Cisco Data Center Network Manager

CVE-2021-1250

Multiple vulnerabilities in the web-based management interface of Cisco Data Center Network Manager (DCNM) could allow a remote attacker with network-operator privileges to conduct a cross-site scripting (XSS) attack or a reflected file download (RFD) attack against a user of the interface. For more information about these vulnerabilities, see the Details section of this advisory.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2021-01-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.006 (47.7th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Weakness classification (CWE)

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dcnm-xss… (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2021-1250?: CVE-2021-1250 is a medium-severity vulnerability in Cisco Data Center Network Manager, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2021-01-20.
How severe is CVE-2021-1250?: Medium severity. CVSS v3 base score is 6.5 out of 10.