Read the docs
TI-2021-00999 Aliases CVE-2021-1272GHSA-qm5r-g6v2-jcgq

Cisco Data Center Network Manager Server-Side Request Forgery Vulnerability

Priority MEDIUM 43CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

A vulnerability in the session validation feature of Cisco Data Center Network Manager (DCNM) could allow an unauthenticated, remote attacker to bypass access controls and conduct a server-side request forgery (SSRF) attack on a targeted system. This vulnerability is due to insufficient validation of parameters in a specific HTTP request by an attacker. An attacker could exploit this vulnerability by sending a crafted HTTP request to an authenticated user of the DCNM web application. A successful exploit could allow the attacker to bypass access controls and gain unauthorized access to the Device Manager application, which provides access to network devices managed by the system.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01299 70th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Data Center Network Managerall versions—No fix listedCNA
  • Cisco Data Center Network Manager VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cisco:data_center_network_manager:*:*:*:*:*:*:*:*before 11.5\(1\)VulnerableCisco
  • cpe:2.3:a:cisco:data_center_network_manager:*:*:*:*:*:*:*:* Versions before 11.5\(1\) Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-1272
  2. 2026-10-03 Alias added: GHSA-qm5r-g6v2-jcgq

References

Advisory 1

  • TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-12015 Cisco Data Center Network Manager Authentication Bypass Vulnerabilities CVSS 3.1CRITICAL 9.8
  • TI-2019-12016 Cisco Data Center Network Manager Authentication Bypass Vulnerabilities CVSS 3.1CRITICAL 9.8
  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2019-01247 Cisco Data Center Network Manager Arbitrary File Upload and Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2019-01246 Cisco Data Center Network Manager Authentication Bypass Vulnerability CVSS 3.1CRITICAL 9.8
See all 67 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences