CVE-2020-3538: A vulnerability in a certain REST API endpoint of Cisco Data Center Network Manager (DCNM) Software could

Q: How do I fix CVE-2020-3538?

data center network manager: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2020-3538 being exploited?

CVE-2020-3538 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-3538 affect?

CVE-2020-3538 affects data center network manager. Severity is medium (CVSS 4.6). A vulnerability in a certain REST API endpoint of Cisco Data Center Network Manager (DCNM) Software could allow an authenticated, remote attacker to perform a path traversal attack on an affected device. The vulnerability is due to in

Q: How urgent is CVE-2020-3538?

Priority 27/100. No elevated risk signals yet.

Routine

MEDIUM 4.6MITIGATE

CVE-2020-3538 is a medium-severity flaw (CVSS 4.6) affecting data center network manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability in a certain REST API endpoint of Cisco Data Center Network Manager (DCNM) Software could allow an authenticated, remote attacker to perform a path traversal attack on an affected device. The vulnerability is due to insufficient path restriction enforcement. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to overwrite or list a

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.6 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-20, CWE-22
Published	2024-11-18
Last modified	2026-06-17

Publisher (CNA): Cisco Systems, Inc. · Vendor: cisco

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-11-18 16:15 UTCPublished CVE record published
2026-06-17 03:18 UTCUpdated Record last modified

cisco data center network manager MITIGATE

Affected: < 11.4\(1\)

Fixed in: 11.4\(1\)

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy data-center-network-manager || rpm -q data-center-network-manager || data-center-network-manager --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-3538?

data center network manager: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-3538 being exploited?

CVE-2020-3538 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-3538 affect?

CVE-2020-3538 affects data center network manager. Severity is medium (CVSS 4.6). A vulnerability in a certain REST API endpoint of Cisco Data Center Network Manager (DCNM) Software could allow an authenticated, remote attacker to perform a path traversal attack on an affected device. The vulnerability is due to in

How urgent is CVE-2020-3538?

Priority 27/100. No elevated risk signals yet.

Software pages

Cisco vulnerabilities

References

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CVE-2020-3538: A vulnerability in a certain REST API endpoint of Cisco&nbsp;Data Center Network Manager (DCNM) Software could