CVE-2026-2140Tenda TX9 setMacFilterCfg sub_4223E0 buffer overflow
Updated under an hour ago ()
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It affects Tenda TX9. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
- Weakness (CWE)
- CWE-120, CWE-119
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Analyzed
- Record last updated
- Feb 23, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Tenda TX9 tenda:tx9_firmware | 22.03.02.10_multi | CNA record |
tenda tx9_firmware tenda:tx9_firmware | through 22.03.02.10 | NVD |
References
- https://vuldb.com/?id.344775vdb-entry, technical-description, third-party-advisory
- https://vuldb.com/?ctiid.344775signature, permissions-required, vdb-entry
- https://vuldb.com/?submit.747251third-party-advisory, vdb-entry
- https://vuldb.com/?submit.749747third-party-advisory, vdb-entry
- https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/setMacFilterCfg.mdrelated, exploit, third-party-advisory
- https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/setMacFilterCfg.md#pocexploit
- https://www.tenda.com.cn/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.