CVE-2025-3820 Details
Description
A vulnerability was found in Tenda W12 and i24 3.0.0.4(2887)/3.0.0.5(3644) and classified as critical. Affected by this issue is the function cgiSysUplinkCheckSet of the file /bin/httpd. The manipulation of the argument hostIp1/hostIp2 leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
A critical stack-based buffer overflow vulnerability has been identified in the Tenda W12 and i24 routers, specifically in the firmware versions 3.0.0.4(2887) and 3.0.0.5(3644). The vulnerability arises in the 'cgiSysUplinkCheckSet' function within the '/bin/httpd' file, where the 'hostIp1' and 'hostIp2' parameters are not properly validated, allowing for remote exploitation. This overflow can overwrite the return address register, potentially leading to arbitrary code execution.
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 21, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/02Tn/vul/issues/4 | [email protected] | ExploitIssue TrackingThird Party Advisory |
| https://vuldb.com/?ctiid.305726 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.305726 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.555728 | [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 w12 firmware | 3.0.0.4(2887) 3.0.0.5(3644) |
CPE
Remediation
| |
| tenda w12 | All versions |
CPE
Remediation
| |
| tenda i24 firmware | 3.0.0.4(2887) 3.0.0.5(3644) |
CPE
Remediation
| |
| tenda i24 | 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 |
| Jul 30, 2025 | Initial Analysis | [email protected] |
| Apr 19, 2025 | New CVE Received | [email protected] |