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Description

A weakness has been identified in Tenda AC9 15.03.06.42_multi. Affected is the function formGetDdosDefenceList. This manipulation of the argument security.ddos.map causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.

PUBLISHED Reserved 2026-02-07 | Published 2026-02-08 | Updated 2026-02-23 | Assigner VulDB




HIGH: 8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
HIGH: 7.2CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
HIGH: 7.2CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
8.3AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Stack-based Buffer Overflow

Memory Corruption

Product status

15.03.06.42_multi
affected

Timeline

2026-02-07:Advisory disclosed
2026-02-07:VulDB entry created
2026-02-09:VulDB entry last update

Credits

jfkk (VulDB User) reporter

References

vuldb.com/?id.344894 (VDB-344894 | Tenda AC9 formGetDdosDefenceList stack-based overflow) vdb-entry technical-description

vuldb.com/?ctiid.344894 (VDB-344894 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.749800 (Submit #749800 | Tenda AC9 v1.0/V3.0 V15.03.06.42_multi Stack-based Buffer Overflow) third-party-advisory

github.com/glkfc/IoT-Vulnerability/blob/main/Tenda/tenda3.md exploit

www.tenda.com.cn/ product

cve.org (CVE-2026-2191)

nvd.nist.gov (CVE-2026-2191)

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