What is CVE-2021-1247?

CVE-2021-1247 is a high-severity vulnerability in Cisco Data Center Network Manager, classified under SQL Injection. CVSS score: 8.8/10. Published 2021-01-20.

How severe is CVE-2021-1247?

High severity. CVSS v3 base score is 8.8 out of 10.

SQL Injection in Cisco Data Center Network Manager

CVE-2021-1247

Multiple vulnerabilities in certain REST API endpoints of Cisco Data Center Network Manager (DCNM) could allow an authenticated, remote attacker to execute arbitrary SQL commands on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Vulnerability class: SQL Injection

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

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.019 (79.6th percentile), scored 2026-10-19.

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: +0.000

Affected products

Weakness classification (CWE)

CWE-89 — SQL Injection

References

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

Frequently asked questions

What is CVE-2021-1247?: CVE-2021-1247 is a high-severity vulnerability in Cisco Data Center Network Manager, classified under SQL Injection. CVSS score: 8.8/10. Published 2021-01-20.
How severe is CVE-2021-1247?: High severity. CVSS v3 base score is 8.8 out of 10.