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Description

A vulnerability was identified in Tenda F1202 1.2.0.20(408). This affects the function fromPptpUserAdd of the file /goform/PptpUserAdd. The manipulation of the argument opttype leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit is publicly available and might be used.

PUBLISHED Reserved 2026-05-24 | Published 2026-05-25 | Updated 2026-05-26 | 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

1.2.0.20(408)
affected

Timeline

2026-05-24:Advisory disclosed
2026-05-24:VulDB entry created
2026-05-24:VulDB entry last update

Credits

LtzHuster2 (VulDB User) reporter

References

vuldb.com/vuln/365412 (VDB-365412 | Tenda F1202 PptpUserAdd fromPptpUserAdd stack-based overflow) vdb-entry technical-description

vuldb.com/vuln/365412/cti (VDB-365412 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/813916 (Submit #813916 | Tenda F1202 V1.2.0.20(408) Stack-based Buffer Overflow) third-party-advisory

github.com/...ng/vuldb_new2/blob/main/F1202/vul_35/README.md exploit

www.tenda.com.cn/ product

cve.org (CVE-2026-9431)

nvd.nist.gov (CVE-2026-9431)

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