CVE-2026-2930 Details
Description
A vulnerability was identified in Tenda A18 15.13.07.13. The affected element is the function webCgiGetUploadFile of the file /cgi-bin/UploadCfg of the component Httpd Service. Such manipulation of the argument boundary leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used.
A stack-based buffer overflow vulnerability has been identified in the Tenda A18 router, specifically in version 15.13.07.13. The issue arises in the Httpd service, within the '/cgi-bin/UploadCfg' file, and is triggered by the 'webCgiGetUploadFile' function. The vulnerability allows remote attackers to execute arbitrary code or cause a denial-of-service condition by sending a crafted 'boundary' string in a multipart/form-data POST request. This exploitation is possible due to insufficient length validation when the boundary string is copied into a fixed-size stack buffer.
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 Feb 27, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/master-abc/cve/issues/40 | [email protected] | Issue Tracking |
| https://vuldb.com/?ctiid.347277 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.347277 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.755227 | [email protected] | Third Party AdvisoryVDB Entry |
| https://www.tenda.com.cn/ | [email protected] | Product |
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 a18 firmware | 15.13.07.13 |
CPE
Remediation
| |
| tenda a18 | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Feb 23, 2026 | Initial Analysis | [email protected] |
| Feb 22, 2026 | New CVE Received | [email protected] |