CVE-2026-5155 Details
Description
A vulnerability was found in Tenda CH22 1.0.0.1. This affects the function fromAdvSetWan of the file /goform/AdvSetWan of the component Parameter Handler. The manipulation of the argument wanmode results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been made public and could be used.
A stack-based buffer overflow vulnerability has been identified in the Tenda CH22 router, specifically in version 1.0.0.1. The issue arises in the 'fromAdvSetWan' function within the '/goform/AdvSetWan' file, part of the Parameter Handler component. The vulnerability is triggered by manipulating the 'wanmode' and 'PPPOEPassword' parameters. When 'wanmode' is set to 2, the function processes the input without proper length validation, leading to a buffer overflow on the stack. This vulnerability can be exploited remotely, and a public exploit is available.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 2, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Litengzheng/vuldb_new/blob/main/CH22/vul_47/README.md | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/submit/780207 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/354187 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/354187/cti | [email protected] | Permissions RequiredVDB Entry |
| https://www.tenda.com.cn/ | [email protected] | Product |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
| 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 ch22 firmware | 1.0.0.1 |
CPE
Remediation
| |
| tenda ch22 | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 2, 2026 | Initial Analysis | [email protected] |
| Mar 30, 2026 | New CVE Received | [email protected] |