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Vulnerabilities

Vulnerability · CVE-2026-2140

A vulnerability was identified in Tenda TX9 up to 22.03.02.10_multi.

Published Feb 8, 2026 · catalog updated Feb 23, 2026 · Tenda TX9

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-2140. EPSS is 0.82%. Act only if a listed version of Tenda TX9 is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High8.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.82%
Remediation
Vendor / distro source
Affected products
vendor Tenda TX9 22.03.02.10_multi

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Tenda TX9 22.03.02.10_multi22.03.02.10_multi

How to fix CVE-2026-2140

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-2140. EPSS is 0.82%. Act only if a listed version of Tenda TX9 is installed.

Which versions are affected?

Compare what you have installed with Tenda TX9 22.03.02.10_multi 22.03.02.10_multi. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.82%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 8, 2026 · EUVD

    Detected

    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.

  2. Feb 23, 2026 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-2140

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-2140

    30-day exploitation probability 0.82%

    first.org
  • EUVDVulnerability recordEUVD-2026-5808

    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 p

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 4, 2026
  • CVE.orgNov 4, 2026
  • EUVDNov 2, 2026