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Description

A weakness has been identified in Tenda HG9 300001138. Affected by this vulnerability is an unknown functionality of the file /boaform/formgponConf of the component GPON Configuration Endpoint. This manipulation of the argument fmgpon_loid/fmgpon_loid_password causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.

PUBLISHED Reserved 2026-02-20 | Published 2026-02-22 | Updated 2026-02-23 | 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

Stack-based Buffer Overflow

Memory Corruption

Product status

300001138
affected

Timeline

2026-02-20:Advisory disclosed
2026-02-20:VulDB entry created
2026-02-20:VulDB entry last update

Credits

LINXI666 (VulDB User) reporter

References

vuldb.com/?id.347216 (VDB-347216 | Tenda HG9 GPON Configuration Endpoint formgponConf stack-based overflow) vdb-entry technical-description

vuldb.com/?ctiid.347216 (VDB-347216 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.755201 (Submit #755201 | Tenda HG9 V300001138 Stack-based Buffer Overflow) third-party-advisory

github.com/QIU-DIE/cve-nneeww/issues/9 exploit issue-tracking

www.tenda.com.cn/ product

cve.org (CVE-2026-2907)

nvd.nist.gov (CVE-2026-2907)

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