CVE-2026-2140
8.8 · HIGHOverview
CVE-2026-2140 is a high-severity vulnerability affecting tenda tx9_firmware. It was published on February 8, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
A vulnerability was identified in Tenda TX9 up to 22.03.02.10_multi. Affected by this issue is the function sub_4223E0 of the file /goform/setMacFilterCfg. Such manipulation of the argument deviceList leads to buffer overflow. The attack may be launched remotely. The exploit is publicly available and might be used.
Remediation
Check the references section for vendor advisories and patches from tenda. Update tx9_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| tenda | tx9_firmware | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2026-2140?
CVE-2026-2140 is a high-severity vulnerability affecting tenda tx9_firmware. It was published on February 8, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2026-2140?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-2140?
Check the references section for vendor advisories and patches from tenda. Update tx9_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-2140?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-2140 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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