CVE-2026-2877 Details
Description
A vulnerability has been found in Tenda A18 15.13.07.13. This affects the function strcpy of the file /goform/WifiExtraSet of the component Httpd Service. The manipulation of the argument wpapsk_crypto5g leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may 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 within the httpd service, in the '/goform/WifiExtraSet' interface. The vulnerability is triggered by the 'wpapsk_crypto5g' parameter, which lacks proper input length validation. This oversight allows remote attackers to overwrite a fixed-size stack buffer using the unsafe 'strcpy' function, potentially leading to arbitrary code execution or a denial-of-service condition by crashing the httpd process.
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 23, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/master-abc/cve/issues/39 | [email protected] | Issue Tracking |
| https://vuldb.com/?ctiid.347130 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.347130 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.754703 | [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
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Feb 23, 2026 | Initial Analysis | [email protected] |
| Feb 21, 2026 | New CVE Received | [email protected] |