CVE-2025-15627: A cryptographic
weakness exists in the Omada adoption protocol.
The protocol relies on hard-coded cryptograph
44
This month
HIGH 7.5REMOTEMITIGATEMITIGATEMITIGATE
CVE-2025-15627 is a high-severity flaw (CVSS 7.5) affecting omada oc200 v3 firmware, omada oc300 firmware, omada oc400 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A cryptographic
weakness exists in the Omada adoption protocol.
The protocol relies on hard-coded cryptographic keys to establish trust and
protect authentication exchanges between controllers and managed devices during
device adoption.
An attacker may
be able to impersonate trusted controllers or managed devices and gain access
to sensitive adoption-related communications.
Why this priority
High severity
Remotely exploitable, no login, no user action
No fix is published yet: follow the downgrade or mitigation steps.
Last updated 2026-09-29 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
Published CVE record published
Updated Record last modified
tp-link omada oc200 v3 firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
tp-link omada oc300 firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
tp-link omada oc400 firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
tp-link omada fusion 2.5g firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
tp-link omada er707-m2 firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
tp-link omada tl-sg3452x firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official sourceNVD · 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-2025-15627?
omada oc200 v3 firmware: mitigate or apply the listed mitigation; omada oc300 firmware: mitigate or apply the listed mitigation; omada oc400 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2025-15627 being exploited?
CVE-2025-15627 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-2025-15627 affect?
CVE-2025-15627 affects omada oc200 v3 firmware, omada oc300 firmware, omada oc400 firmware. Severity is high (CVSS 7.5). A cryptographic
weakness exists in the Omada adoption protocol.
The protocol relies on hard-coded cryptographic keys to establish trust and
protect authentication exchanges between controllers and managed devices during
device adoption.
How urgent is CVE-2025-15627?
Priority 44/100. High severity; Remotely exploitable, no login, no user action
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