Wavlink WN530HG4B api.cgi heap-based overflow
A vulnerability was found in Wavlink WN530HG4B M30HG4B_V260724. The impacted element is an unknown function of the file api.cgi. The manipulation results in heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 2026-09-24-841a51c6d5_tclinux.bin is sufficient to resolve this issue. The affected component should be upgraded. The vendor confirms: "We confirm the finding, and it has already been addressed. In the current firmware the api=info&client=app handler no longer builds a shell command: the login script is now invoked through an argument vector (execvp) instead of system(), and the client address is length-limited and null-checked."
CVE-2026-110958
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-110958
WN530HG4B
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"cpes": [
"cpe:2.3:a:wavlink:wn530hg4b:*:*:*:*:*:*:*:*"
],
"vendor": "Wavlink",
"product": "WN530HG4B",
"versions": [
{
"status": "affected",
"version": "M30HG4B_V260724"
},
{
"status": "unaffected",
"version": "2026-09-24-841a51c6d5_tclinux.bin"
}
]
}
]- Related CVEs
- CVE-2026-110958
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #30041 · Revision 1
- Added to Heist Feed
- Publisher date