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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.

PUBLISHED Reserved 2026-02-06 | Published 2026-02-08 | Updated 2026-02-08 | Assigner VulDB




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
HIGH: 8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
9.0AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Buffer Overflow

Memory Corruption

Product status

22.03.02.10_multi
affected

Timeline

2026-02-06:Advisory disclosed
2026-02-06:VulDB entry created
2026-02-06:VulDB entry last update

Credits

kdb3169 (VulDB User) reporter

References

vuldb.com/?id.344775 (VDB-344775 | Tenda TX9 setMacFilterCfg sub_4223E0 buffer overflow) vdb-entry technical-description

vuldb.com/?ctiid.344775 (VDB-344775 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.747251 (Submit #747251 | Tenda TX9 V22.03.02.10_multi Buffer Overflow) third-party-advisory

vuldb.com/?submit.749747 (Submit #749747 | Tenda TX9 V22.03.02.18 Stack-based Buffer Overflow (Duplicate)) third-party-advisory

github.com/...uls/blob/main/tenda/tx9 pro/setMacFilterCfg.md related

github.com/...uls/blob/main/tenda/tx9 pro/setMacFilterCfg.md exploit

www.tenda.com.cn/ product

cve.org (CVE-2026-2140)

nvd.nist.gov (CVE-2026-2140)

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