CVE-2026-7717 Details
Description
A vulnerability was determined in Totolink WA300 5.2cu.7112_B20190227. This issue affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Executing a manipulation of the argument File can lead to buffer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.
A buffer overflow vulnerability has been identified in the Totolink WA300 router, specifically in version 5.2cu.7112_B20190227. The issue arises in the UploadCustomModule function within the POST request handler file cstecgi.cgi. This vulnerability can be exploited remotely by manipulating the File argument, leading to potential arbitrary 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 4, 2026CISA-ADP
Assessed May 4, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://lavender-bicycle-a5a.notion.site/TOTOLINK-WA300-UploadCustomModule-34553a41781f80a8a287e48a7fb04de9 | [email protected] | |
| https://vuldb.com/submit/807193 | [email protected] | Permission Required |
| https://vuldb.com/vuln/360893 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/360893/cti | [email protected] | Content Wall |
| https://www.totolink.net/ | [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-120 | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Totolink WA300 | All versions |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 4, 2026 | New CVE Received | [email protected] |