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Critical· 9.8

CVE-2024-51315

A critical stack overflow vulnerability exists in the Tenda TX9 router firmware version V22.03.02.20. The flaw is in the /goform/SetOnlineDevName handler and can be triggered remotely without authentication. An attacker could potentially take control of the device.

publishedJul 20, 2026
last modifiedJul 21, 2026
sourcesNVD
severity · cvss
9.8
critical · how bad it is
exploitation · epss
<1%
34th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Sep 4, 2026

No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.

01

Who is affected

Tenda TX9 router, firmware V22.03.02.20.

02

Real-world impact

An attacker could execute arbitrary code on the router, potentially taking full control, intercepting traffic, or using the device as part of a botnet.

03

Why this severity

The CVSS score of 9.8 reflects the vulnerability's remote exploitability, lack of authentication, and the ability to compromise confidentiality, integrity, and availability.

04

What to do about it

no official fix yet
interim mitigations
  • Avoid using the vulnerable firmware version; if a newer firmware is available, upgrade the router. If no update is available, consider disabling the affected feature or replacing the device.

No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.

No fix documented in sources

05

Timeline

06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone needed
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →