CVE-2026-5004 Details
Description
A vulnerability was determined in Wavlink WL-WN579X3-C 231124. This impacts the function sub_4019FC of the file /cgi-bin/firewall.cgi of the component UPNP Handler. Executing a manipulation of the argument UpnpEnabled can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
A stack-based buffer overflow vulnerability has been identified in the Wavlink WL-WN579X3-C router, specifically in version 231124. The issue resides in the UPNP handler within the file /cgi-bin/firewall.cgi. The vulnerability is triggered by manipulating the UpnpEnabled argument, which leads to a buffer overflow on the stack. This flaw can be exploited remotely, causing a program crash and potentially allowing an attacker to execute arbitrary code, with the risk of full system compromise.
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 Mar 30, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Litengzheng/vul_db/blob/main/WL-WN579X3-C/vul_200/README.md | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/submit/779149 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/353891 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/353891/cti | [email protected] | Permissions RequiredVDB Entry |
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 |
|---|---|
| wavlink wl-wn579x3-c firmware | 231124 |
CPE
Remediation
| |
| wavlink wl-wn579x3-c | 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 3, 2026 | Initial Analysis | [email protected] |
| Mar 28, 2026 | New CVE Received | [email protected] |