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CVE-2025-15631: A cryptographic weakness exists in affected Omada devices where site credentials are protected using a legacy

31
Routine
MEDIUM 5.9REMOTEMITIGATEMITIGATEMITIGATE

CVE-2025-15631 is a medium-severity flaw (CVSS 5.9) affecting omada fusion 2.5g firmware, omada er707-m2 firmware, omada er7206 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A cryptographic weakness exists in affected Omada devices where site credentials are protected using a legacy hashing algorithm that does not provide sufficient protection. An attacker who obtains access to stored credential data may be able to recover valid credentials to gain unauthorized access to affected devices or management environments.

Why this priority

  • Remotely exploitable, no login, no user action

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

Risk facts

CVSS score5.9 (Medium)
Attack vectorNetwork (remote)
Attack complexityHigh
Privileges neededNone
User interactionNone
EPSS exploit chance0.3% (top 77%)
CISA exploited listNo
WeaknessCWE-759
Published2026-08-03
Last modified2026-09-29
Publisher (CNA): TPLink · Vendor: tp-link

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Last updated 2026-09-29 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

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 er7206 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 er706w 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 er8411 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 er605 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 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-2025-15631?

omada fusion 2.5g firmware: mitigate or apply the listed mitigation; omada er707-m2 firmware: mitigate or apply the listed mitigation; omada er7206 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-15631 being exploited?

CVE-2025-15631 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-2025-15631 affect?

CVE-2025-15631 affects omada fusion 2.5g firmware, omada er707-m2 firmware, omada er7206 firmware. Severity is medium (CVSS 5.9). A cryptographic weakness exists in affected Omada devices where site credentials are protected using a legacy hashing algorithm that does not provide sufficient protection. An attacker who obtains access to stored credential data m

How urgent is CVE-2025-15631?

Priority 31/100. Remotely exploitable, no login, no user action

Software pages

TP-Link vulnerabilities

Related CVEs

References

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