CVE-2024-51406: Floodlight SDN Open Flow Controller v.1.2 has an issue that allows local hosts to build fake LLDP packets that

Routine

MEDIUM 6.2DOWNGRADE

CVE-2024-51406 is a medium-severity flaw (CVSS 6.2) affecting open sdn controller. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Floodlight SDN Open Flow Controller v.1.2 has an issue that allows local hosts to build fake LLDP packets that allow specific clusters to be missed by Floodlight, which in turn leads to missed hosts inside and outside the cluster.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.2 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 86%)
CISA exploited list	No
Weakness	CWE-290
Published	2024-11-01
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: projectfloodlight

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

Am I affected?

Timeline

2024-11-01 14:15 UTCPublished CVE record published
2026-06-17 08:05 UTCUpdated Record last modified

projectfloodlight open sdn controller DOWNGRADE

Affected: 1.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2

1. Check installed version

apt-cache policy open-sdn-controller || rpm -q open-sdn-controller || open-sdn-controller --version

2. No fixed release: DOWNGRADE to a release before 1.2 (Debian / Ubuntu)

apt-cache madison open-sdn-controller sudo apt install open-sdn-controller=<VERSION_BEFORE_1.2> sudo apt-mark hold open-sdn-controller

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list open-sdn-controller sudo dnf downgrade open-sdn-controller-<VERSION_BEFORE_1.2> sudo dnf versionlock add open-sdn-controller

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2024-51406?

open sdn controller: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-51406 being exploited?

CVE-2024-51406 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-2024-51406 affect?

CVE-2024-51406 affects open sdn controller. Severity is medium (CVSS 6.2). Floodlight SDN Open Flow Controller v.1.2 has an issue that allows local hosts to build fake LLDP packets that allow specific clusters to be missed by Floodlight, which in turn leads to missed hosts inside and outside the cluster.

How urgent is CVE-2024-51406?

Priority 30/100. Public exploit reference

Related CVEs

CVE-2024-29461 MEDIUM 6.3 DOWNGRADE An issue in Floodlight SDN OpenFlow Controller v.1.2 allows a remote attacker to cause a denial of service via

References

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