CVE-2020-3376
Cisco Data Center Network Manager Authentication Bypass Vulnerability
A vulnerability in the Device Manager application of Cisco Data Center Network Manager (DCNM) could allow an unauthenticated, remote attacker to bypass authentication and execute arbitrary actions on an affected device. The vulnerability is due to a failure in the software to perform proper authentication. An attacker could exploit this vulnerability by browsing to one of the hosted URLs in Cisco DCNM. A successful exploit could allow the attacker to interact with and use certain functions within the Cisco DCNM.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Cisco Data Center Network Manager Authentication Bypass Vulnerability
A vulnerability in the Device Manager application of Cisco Data Center Network Manager (DCNM) could allow an unauthenticated, remote attacker to bypass authentication and execute arbitrary actions on an affected device. The vulnerability is due to a failure in the software to perform proper authentication. An attacker could exploit this vulnerability by browsing to one of the hosted URLs in Cisco DCNM. A successful exploit could allow the attacker to interact with and use certain functions within the Cisco DCNM.
- Record
CVE-2020-3376- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-306
- Updated
- 2026-11-02
EUVDEUVD-2020-24647
A vulnerability in the Device Manager application of Cisco Data Center Network Manager (DCNM) could allow an unauthenticated, remote attacker to bypass authentication and execute arbitrary actions on an affected device. The vulnerability is due to a failure in the software to perform proper authentication. An attacker could exploit this vulnerability by browsing to one of the hosted URLs in Cisco DCNM. A successful exploit could allow the attacker to interact with and use certain functions within the Cisco DCNM.
- Record
EUVD-2020-24647- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-x97g-525f-hjwr No score
A vulnerability in the Device Manager application of Cisco Data Center Network Manager (DCNM)...
A vulnerability in the Device Manager application of Cisco Data Center Network Manager (DCNM) could allow an unauthenticated, remote attacker to bypass authentication and execute arbitrary actions on an affected device. The vulnerability is due to a failure in the software to perform proper authentication. An attacker could exploit this vulnerability by browsing to one of the hosted URLs in Cisco DCNM. A successful exploit could allow the attacker to interact with and use certain functions within the Cisco DCNM.
- Record
GHSA-x97g-525f-hjwr- Updated
- 2026-11-02
NVD
A vulnerability in the Device Manager application of Cisco Data Center Network Manager (DCNM) could allow an unauthenticated, remote attacker to bypass authentication and execute arbitrary actions on an affected device. The vulnerability is due to a failure in the software to perform proper authentication. An attacker could exploit this vulnerability by browsing to one of the hosted URLs in Cisco DCNM. A successful exploit could allow the attacker to interact with and use certain functions within the Cisco DCNM.
- Record
CVE-2020-3376- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-306
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-3376 is a high vulnerability (CVSS 7.3) in Cisco Data Center Network Manager, published July 31, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.15%, the 67th percentile. No source names a fixed version.