CVE-2024-53423: An issue in Open Network Foundation ONOS v2.7.0 allows attackers to cause a Denial of Service (DoS) via supply

Routine

MEDIUM 5.6REMOTEDOWNGRADE

CVE-2024-53423 is a medium-severity flaw (CVSS 5.6) affecting onos. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in Open Network Foundation ONOS v2.7.0 allows attackers to cause a Denial of Service (DoS) via supplying crafted packets.

Why this priority

Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	5.6 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-400
Published	2025-05-29
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: opennetworking

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

Am I affected?

Timeline

2025-05-29 18:15 UTCPublished CVE record published
2026-06-17 08:08 UTCUpdated Record last modified

opennetworking onos DOWNGRADE

Affected: 2.7.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.7.0

1. Check installed version

apt-cache policy onos || rpm -q onos || onos --version

2. No fixed release: DOWNGRADE to a release before 2.7.0 (Debian / Ubuntu)

apt-cache madison onos sudo apt install onos=<VERSION_BEFORE_2.7.0> sudo apt-mark hold onos

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

dnf --showduplicates list onos sudo dnf downgrade onos-<VERSION_BEFORE_2.7.0> sudo dnf versionlock add onos

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-2024-53423?

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

Is CVE-2024-53423 being exploited?

CVE-2024-53423 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-2024-53423 affect?

CVE-2024-53423 affects onos. Severity is medium (CVSS 5.6). An issue in Open Network Foundation ONOS v2.7.0 allows attackers to cause a Denial of Service (DoS) via supplying crafted packets.

How urgent is CVE-2024-53423?

Priority 30/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-29312 CRITICAL 9.1 DOWNGRADE An issue in onos v2.7.0 allows attackers to trigger unexpected behavior within a device connected to a legacy
CVE-2025-29311 HIGH 7.5 DOWNGRADE Limited secret space in LLDP packets used in onos v2.7.0 allows attackers to obtain the private key via a brut
CVE-2025-29310 CRITICAL 9.8 DOWNGRADE An issue in onos v2.7.0 allows attackers to trigger a packet deserialization problem when supplying a crafted
CVE-2023-41591 CRITICAL 9.8 DOWNGRADE An issue in Open Network Foundation ONOS v2.7.0 allows attackers to create fake IP/MAC addresses and potential

References

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