Vulnerability details
CVE-2026-109109
Wavlink WL-WN530BE1-A
Wavlink WL-WN530BE1-A Settings Export CGI ExportAllSettings.cgi strcpy stack-based overflow
CVSS 4.0
10.0Critical
Official description
A vulnerability was detected in Wavlink WL-WN530BE1-A 251117. This vulnerability affects the function strcpy of the file /cgi-bin/ExportAllSettings.cgi of the component Settings Export CGI. Performing a manipulation of the argument HTTP_COOKIE/X-Cmd results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 10.0Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulDB) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P |
| 10.0Critical | 3.1 | CVEProject cvelistV5 (CNA) (VulDB) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C |
| 10.0Critical | 3.0 | CVEProject cvelistV5 (CNA) (VulDB) | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C |
| 10.0High | 2.0 | CVEProject cvelistV5 (CNA) (VulDB) | AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:C |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Wavlink | WL-WN530BE1-A | 251117 | CVEProject cvelistV5 (CNA) |
References and advisories
5- https://vuldb.com/vuln/416860 vdb-entrytechnical-description
- https://vuldb.com/vuln/416860/cti signaturepermissions-required
- https://vuldb.com/cve/CVE-2026-109109 third-party-advisory
- https://vuldb.com/submit/909191 third-party-advisory
- https://gist.github.com/Rauzk/9ef4fe7574e5689386cc43139f4cf9e1 broken-linkexploit
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Details
- Published
- 2026-10-13
- Last updated
- 2026-10-14
- State
- Published
- Assigner (CNA)
- VulDB
- Kolun priority
- 37 · Medium
Exploit prediction (EPSS)
0.58%
Probability of exploitation in 30 days
48.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-121Stack-based Buffer Overflow
- CWE-119Memory Corruption