CVE-2026-9431 Details
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.
A stack-based buffer overflow vulnerability has been identified in the Tenda F1202 router, specifically in version 1.2.0.20(408). The issue arises in the 'fromPptpUserAdd' function within the '/goform/PptpUserAdd' file. The vulnerability is triggered by manipulating the 'opttype' argument, which leads to the overflow. This remote exploit is publicly available and could be used to execute a denial-of-service attack or potentially allow for remote code execution.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 25, 2026CISA-ADP
Assessed May 26, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Litengzheng/vuldb_new2/blob/main/F1202/vul_35/README.md | [email protected] | ExploitTechnical Description |
| https://vuldb.com/submit/813916 | [email protected] | Permission Required |
| https://vuldb.com/vuln/365412 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/365412/cti | [email protected] | AdvisoryPermission Required |
| https://www.tenda.com.cn/ | [email protected] | Vendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-121 | Stack-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Tenda F1202 | 1.2.0.20(408) |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 25, 2026 | New CVE Received | [email protected] |